Which of the following statements correctly identifies a difference between perfect competition and monopolistic competition?单项选择题

A

In perfect competition the firms all sell products that are exactly the same, but in monopolistic competition each firm sells a slightly differentiated product.

B

In perfect competition there are no barriers to entry, but there are strong barriers in monopolistic competition.

C

In perfect competition firms maximize profit by selling the quantity where marginal revenue equals marginal cost, but in monopolistic competition firms maximize profit by selling the quantity where marginal revenue exceeds marginal cost.

D

In perfect competition there are many firms, but in monopolistic competition there are only a few firms.

E

In perfect competition there are few consumers, but in monopolistic competition there are many consumers.

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