C为何错误？因为员工需要培训，短期收益小于成本？
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2017100901000006 问题如下 A company plans to hire aitionfactory employees. In the short run, marginreturns are most likely to crease if: A.the factory is operating full capacity. B.the factory is experiencing a labor shortage. C.workers are requireto multitask anshare ties. A is correct.The lof minishing returns occurs in the short run when aitionoutput falls more anmore labor is aeto a fixeamount of capital. When a factory is operating full capacity, aing aitionemployees will not increase proction because the physicplant is alrea 100% employe More labor hours will a to costs without aing to output, thus resulting in minishing marginreturns.考点边际效用递减劳动力短缺的情况下，增加劳动力是可以增加边际产出的。B不入选分工本身是专业化的表现，也可以增加边际产出。C不入选厂房满负荷运作，表明产量很难增加。但是工人现在增加了，那么边际产量会出现下降。A入选。 RT反复看了C的表述，以及助教对应的回答，都很牵强，C明明就是降低效率。
NO.PZ2017100901000006 the factory is experiencing a labor shortage. workers are requireto multitask anshare ties. A is correct. The lof minishing returns occurs in the short run when aitionoutput falls more anmore labor is aeto a fixeamount of capital. When a factory is operating full capacity, aing aitionemployees will not increase proction because the physicplant is alrea 100% employe More labor hours will a to costs without aing to output, thus resulting in minishing marginreturns. 考点边际效用递减 劳动力短缺的情况下，增加劳动力是可以增加边际产出的。B不入选 分工本身是专业化的表现，也可以增加边际产出。C不入选 厂房满负荷运作，表明产量很难增加。但是工人现在增加了，那么边际产量会出现下降。A入选。 C中的单词是多种工作和分享责任，这个单词和分工是一个意思么？
the factory is experiencing a labor shortage. workers are requireto multitask anshare ties. A is correct. The lof minishing returns occurs in the short run when aitionoutput falls more anmore labor is aeto a fixeamount of capital. When a factory is operating full capacity, aing aitionemployees will not increase proction because the physicplant is alrea 100% employe More labor hours will a to costs without aing to output, thus resulting in minishing marginreturns. 考点边际效用递减 劳动力短缺的情况下，增加劳动力是可以增加边际产出的。B不入选 分工本身是专业化的表现，也可以增加边际产出。C不入选 厂房满负荷运作，表明产量很难增加。但是工人现在增加了，那么边际产量会出现下降。A入选。 请问c选择不是说一个员工需要承担多项任务，共担责任。这不是分工不明确的意思吗？不利于提升生产效率？
the factory is experiencing a labor shortage. workers are requireto multitask anshare ties. A is correct. The lof minishing returns occurs in the short run when aitionoutput falls more anmore labor is aeto a fixeamount of capital. When a factory is operating full capacity, aing aitionemployees will not increase proction because the physicplant is alrea 100% employe More labor hours will a to costs without aing to output, thus resulting in minishing marginreturns. 考点边际效用递减 劳动力短缺的情况下，增加劳动力是可以增加边际产出的。B不入选 分工本身是专业化的表现，也可以增加边际产出。C不入选 厂房满负荷运作，表明产量很难增加。但是工人现在增加了，那么边际产量会出现下降。A入选。 可以一下吗，劳动力短缺？
老师 我没明白a的意思 可以一下吗？
