C选项的含义及为什么不对

NO.PZ2023040301000076问题如下 Whiof the following statements regarng sector inces is most accurate? Sector inces: A.trafferent economic sectors ancannot aggregateto represent the equivalent of a bromarket inxB.provi a means to termine whether active investment manager is more successful stoselection or sector allocationC.apply a universally agreeupon sector classification system to intify the constituent securities of specific economic sectors, suconsumer goo, energy, finance, health care Sector inces provi a means to termine whether a portfolio manager is more successful stoselection or sector allocation stoselection和sector allocation是啥

NO.PZ2023040301000076问题如下 Whiof the following statements regarng sector inces is most accurate? Sector inces: A.trafferent economic sectors ancannot aggregateto represent the equivalent of a bromarket inxB.provi a means to termine whether active investment manager is more successful stoselection or sector allocationC.apply a universally agreeupon sector classification system to intify the constituent securities of specific economic sectors, suconsumer goo, energy, finance, health care Sector inces provi a means to termine whether a portfolio manager is more successful stoselection or sector allocation 请问这道题为啥B 对 谢谢

NO.PZ2023040301000076问题如下 Whiof the following statements regarng sector inces is most accurate? Sector inces: A.trafferent economic sectors ancannot aggregateto represent the equivalent of a bromarket inxB.provi a means to termine whether active investment manager is more successful stoselection or sector allocationC.apply a universally agreeupon sector classification system to intify the constituent securities of specific economic sectors, suconsumer goo, energy, finance, health care Sector inces provi a means to termine whether a portfolio manager is more successful stoselection or sector allocation A项为啥不对呢·…….