某人消费苹果与香蕉,而且处于消费者均衡。最后一个苹果的边际效用为10,最后一个香蕉的边际效用为5,如果苹果的价格为0.5元,则香蕉的价格为()
A.0.10元
B.0.20元
C.0.25元
D.O.50元
正确答案是C
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