麻烦解释一下C为什么错吗？
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2016010801000037 问题如下 In a perfecompetitive market, a firm’s marginrevenue is always: A.equto the priper unit. B.equto the aitioncost for one more unit. C.equto the average cost per unit. In a perfecompetitive market, the firm is pritaker, therefore, marginrevenue is always the same priper unit. In equilibrium, eafirm will reathe position where P=MR=MC.考点完全竞争市场解析在完全竞争的市场中，企业是价格接受者，因此边际收益始终等于单位价格。在均衡状态下，各企业才会达到P=MR=MC的均衡。 想问这题c不是AC吗，MR=AC=P嘛不是，为啥不选
NO.PZ2016010801000037 问题如下 In a perfecompetitive market, a firm’s marginrevenue is always: A.equto the priper unit. B.equto the aitioncost for one more unit. C.equto the average cost per unit. In a perfecompetitive market, the firm is pritaker, therefore, marginrevenue is always the same priper unit. In equilibrium, eafirm will reathe position where P=MR=MC.考点完全竞争市场解析在完全竞争的市场中，企业是价格接受者，因此边际收益始终等于单位价格。在均衡状态下，各企业才会达到P=MR=MC的均衡。 其他都没有说明 C 为什么不正确。麻烦一下。
NO.PZ2016010801000037 equto the aitioncost for one more unit. equto the average cost per unit. In a perfecompetitive market, the firm is pritaker, therefore, marginrevenue is always the same priper unit. In equilibrium, eafirm will reathe position where P=MR=M考点完全竞争市场 解析在完全竞争的市场中，企业是价格接受者，因此边际收益始终等于单位价格。在均衡状态下，各企业才会达到P=MR=MC的均衡。问一下B说的不是MC吗？
NO.PZ2016010801000037 equto the aitioncost for one more unit. equto the average cost per unit. In a perfecompetitive market, the firm is pritaker, therefore, marginrevenue is always the same priper unit. In equilibrium, eafirm will reathe position where P=MR=M考点完全竞争市场 解析在完全竞争的市场中，企业是价格接受者，因此边际收益始终等于单位价格。在均衡状态下，各企业才会达到P=MR=MC的均衡。给了ac,mc,tc方程的那道计算题
NO.PZ2016010801000037 1.在perfecompetition的情况下，p=ar=mr恒成立 2.在（1）的基础上，当perfecompetition的市场达到均衡时，p=mr=mc=atc
