The Figure Given Below Shows the Revenue and Cost Curves

Multiple Choice

The figure given below shows the revenue and cost curves of a firm. MC represents the marginal cost curve, AC the average cost curve, MR the marginal revenue curve, and AR the average revenue curve.Figure 9.4

-In contrast to both perfect competition and monopolistic competition, an oligopoly market structure is characterized by:

A) price discrimination.
B) a perfectly inelastic demand curve.
C) the presence of infinite number of firms.
D) the production of only differentiated products.
E) difficulty in the entry of new firms.