Which Statement Is TRUE

Multiple Choice

Which statement is TRUE?

A) For choosing the profit-maximizing quantity,the short-run decision-making process of a firm in perfect competition is the same as that of a firm in monopolistic competition since they produce so that P > MC.
B) In the long run in perfect competition,economic profits equal zero,and in monopolistic competition in the long run,economic profits are very large.
C) In perfect competition,P = MC,and in monopolistic competition,MR = MC,but P > MC and there is excess capacity.
D) In both perfect competition and monopolistic competition,P equals minimum average total cost in the long run.