问题
单项选择题
Which of the following statements is least accurate with regard to the efficiency of monopolistic competition （）
A. Consumers benefit from brand name promotion and advertising.
B. Promotion and advertising enable consumers to make more informed decisions.
C. Monopolistic competition is at least as efficient as perfect competition.
答案
参考答案：C
解析：
The efficiency of monopolistic competition is unclear. Consumers may make better purchasing decisions due to the information content of brand name promotion and advertising. However, there are those that argue that the increased cost of advertising and sales is not justified by the benefits of these activities and represent inefficient use of resources.