请教胡老师,关于MONOPOLY的一道题 likely, natural, perfect, monopoly, decrease

fionzheng

Compared to perfect competition, a natural monopoly will most likely be associated with a decrease in

A. DEADWEIGHT LOSS

B.PRODUCER SURPLUS

C.CONSUMER SURPLUS

D.EQUILIBRIUM QUANTITY

答案是C,但为什么D不对呢? 在完全垄断的情况下,均衡产量应该是降低呀.