问题如下图：
选项：
A. 
B. 
C. 
解释：
请问B选项为什么不对？
NO.PZ2016010801000040问题如下A firm in perfecompetitive market will enlarge its output when:A.marginrevenue 0.B.marginrevenue market price.C.market pri margincost.C is correct. When pri margincost, a firm in perfecompetition cenlarge its output. In equilibrium, profit is maximizewhen P=MC.考点完全竞争厂商解析完全竞争厂家利润最大化的条件是P=MC，如果当P MC，那么厂家就可以通过扩大生产的方式进一步提升利润。如题，若有MR MC，是不是也对
NO.PZ2016010801000040 问题如下 A firm in perfecompetitive market will enlarge its output when: A.marginrevenue 0. B.marginrevenue market price. C.market pri margincost. C is correct. When pri margincost, a firm in perfecompetition cenlarge its output. In equilibrium, profit is maximizewhen P=MC.考点完全竞争厂商解析完全竞争厂家利润最大化的条件是P=MC，如果当P MC，那么厂家就可以通过扩大生产的方式进一步提升利润。 谢谢老师，讲义上写的是完全竞争市场下，P=MR=MC，这么看A和B不是应该都对么
NO.PZ2016010801000040 问题如下 A firm in perfecompetitive market will enlarge its output when: A.marginrevenue 0. B.marginrevenue market price. C.market pri margincost. C is correct. When pri margincost, a firm in perfecompetition cenlarge its output. In equilibrium, profit is maximizewhen P=MC.考点完全竞争厂商解析完全竞争厂家利润最大化的条件是P=MC，如果当P MC，那么厂家就可以通过扩大生产的方式进一步提升利润。 请教老师，perfercompetition难道不是MR=MC=P时利益最大吗？这道题的考点是什么谢谢
NO.PZ2016010801000040 从公式上理解，MR=△TR➗△Q＞0，说明Q和TR是正相关，那么如果提升Q，TR也会增加。不也是会扩大生产么?
怎么理解？a为什么不对？
