问题
单项选择题
Under which type of market structure are the production and pricing alternatives of a firm most affected by the decisions of its competitors（）
A. Monopoly.
B. Perfect competition.
C. Oligopoly.
答案
参考答案：C
解析：
An oligopoly market structure is characterized by a small number of firms producing similar or differentiated products, with a high degree of interdependence among competitors. Each firm's optimal price and output are strongly affected by the pricing and output decisions of its competitors.