问题
单项选择题
Monopolistic competition differs from pure monopoly in that:（）
A. barriers to entry are high under monopoly, but low under monopolistic competition.
B. monopolistic competitors are price takers, monopolists are not.
C. monopolistic competitors face downward sloping demand curves, monopolists do not.
答案
参考答案：A
解析：
Monopolistic competition is characterized by the low barriers to enter its competitive markets. In contrast, a monopoly exists only where there are high barriers to market entry.