请老师解释一下D选项

NO.PZ2022090802000005问题如下 A flower shop hpreferresupplier arrangements with answering service, to take orrs after hours, ana bicycle livery service, to ensure thit cmake liveries quickly, reliably, ana reasonable cost. Whiof the following statements is most accurate for the flower shop?(备注原版书课后题原题。和真题的出题形式不同（真题只有三个）。大家做题时不用纠结题目形式，关注知识点原理即可) A.The answering serviis part of its supply chain.B.The bicycle livery serviis part of its value chain.C.The bicycle livery serviis part of its supply chain.The bicycle livery serviis not a part of the value proposition for the flower shop.SolutionC is correct. A supply chain inclus all the steps involvein procing anlivering a physicproto the encustomer, regaress of whether those steps are performea single firm. A value chain inclus only those functions performea single firm, but it also inclus functions thare valuable to customers but mnot involve physictransformation or haning of the proct. The bicycle livery serviis a sourof value to customers, so it is part of the flower shop's value proposition, but it is performea thirparty, so it is not part of the flower shop value chain but, rather, is part of its supply chain. The answering serviis not a step in the physicgoo flow, so it is not a part of the supply chain.关于bicycle livery 由supplier提供，属于公司外部的，不属于value chain为什么不对？

NO.PZ2022090802000005问题如下 A flower shop hpreferresupplier arrangements with answering service, to take orrs after hours, ana bicycle livery service, to ensure thit cmake liveries quickly, reliably, ana reasonable cost. Whiof the following statements is most accurate for the flower shop?(备注原版书课后题原题。和真题的出题形式不同（真题只有三个）。大家做题时不用纠结题目形式，关注知识点原理即可) A.The answering serviis part of its supply chain.B.The bicycle livery serviis part of its value chain.C.The bicycle livery serviis part of its supply chain.The bicycle livery serviis not a part of the value proposition for the flower shop.SolutionC is correct. A supply chain inclus all the steps involvein procing anlivering a physicproto the encustomer, regaress of whether those steps are performea single firm. A value chain inclus only those functions performea single firm, but it also inclus functions thare valuable to customers but mnot involve physictransformation or haning of the proct. The bicycle livery serviis a sourof value to customers, so it is part of the flower shop's value proposition, but it is performea thirparty, so it is not part of the flower shop value chain but, rather, is part of its supply chain. The answering serviis not a step in the physicgoo flow, so it is not a part of the supply chain.什么错误？可以一下吗

NO.PZ2022090802000005 问题如下 A flower shop hpreferresupplier arrangements with answering service, to take orrs after hours, ana bicycle livery service, to ensure thit cmake liveries quickly, reliably, ana reasonable cost. Whiof the following statements is most accurate for the flower shop?(备注原版书课后题原题。和真题的出题形式不同（真题只有三个）。大家做题时不用纠结题目形式，关注知识点原理即可) A.The answering serviis part of its supply chain. B.The bicycle livery serviis part of its value chain. C.The bicycle livery serviis part of its supply chain. The bicycle livery serviis not a part of the value proposition for the flower shop. SolutionC is correct. A supply chain inclus all the steps involvein procing anlivering a physicproto the encustomer, regaress of whether those steps are performea single firm. A value chain inclus only those functions performea single firm, but it also inclus functions thare valuable to customers but mnot involve physictransformation or haning of the proct. The bicycle livery serviis a sourof value to customers, so it is part of the flower shop's value proposition, but it is performea thirparty, so it is not part of the flower shop value chain but, rather, is part of its supply chain. The answering serviis not a step in the physicgoo flow, so it is not a part of the supply chain. 属于这个环节中的什么呢？

NO.PZ2022090802000005 问题如下 A flower shop hpreferresupplier arrangements with answering service, to take orrs after hours, ana bicycle livery service, to ensure thit cmake liveries quickly, reliably, ana reasonable cost. Whiof the following statements is most accurate for the flower shop?(备注原版书课后题原题。和真题的出题形式不同（真题只有三个）。大家做题时不用纠结题目形式，关注知识点原理即可) A.The answering serviis part of its supply chain. B.The bicycle livery serviis part of its value chain. C.The bicycle livery serviis part of its supply chain. The bicycle livery serviis not a part of the value proposition for the flower shop. SolutionC is correct. A supply chain inclus all the steps involvein procing anlivering a physicproto the encustomer, regaress of whether those steps are performea single firm. A value chain inclus only those functions performea single firm, but it also inclus functions thare valuable to customers but mnot involve physictransformation or haning of the proct. The bicycle livery serviis a sourof value to customers, so it is part of the flower shop's value proposition, but it is performea thirparty, so it is not part of the flower shop value chain but, rather, is part of its supply chain. The answering serviis not a step in the physicgoo flow, so it is not a part of the supply chain. 第一个问题supply chain是all the steps involvein procing anlivering a physicproto the encustomer。A和C都是在花店享受到的all steps中的一个环节，为什么C就对，A就不对。

NO.PZ2022090802000005问题如下 A flower shop hpreferresupplier arrangements with answering service, to take orrs after hours, ana bicycle livery service, to ensure thit cmake liveries quickly, reliably, ana reasonable cost. Whiof the following statements is most accurate for the flower shop?(备注原版书课后题原题。和真题的出题形式不同（真题只有三个）。大家做题时不用纠结题目形式，关注知识点原理即可) A.The answering serviis part of its supply chain.B.The bicycle livery serviis part of its value chain.C.The bicycle livery serviis part of its supply chain.The bicycle livery serviis not a part of the value proposition for the flower shop.SolutionC is correct. A supply chain inclus all the steps involvein procing anlivering a physicproto the encustomer, regaress of whether those steps are performea single firm. A value chain inclus only those functions performea single firm, but it also inclus functions thare valuable to customers but mnot involve physictransformation or haning of the proct. The bicycle livery serviis a sourof value to customers, so it is part of the flower shop's value proposition, but it is performea thirparty, so it is not part of the flower shop value chain but, rather, is part of its supply chain. The answering serviis not a step in the physicgoo flow, so it is not a part of the supply chain.请问如果配送是公司自己配送，那就是价值链而非供应链了吗？