题目3单选题
A perfectly competitive market is a market in whichA. there are many buyers and sellers, none of whom represents a large part of the market, and firms are price takersB. there are only a few large buyers and sellers, who represent a large part of the market, and firms are price takersC. there are many buyers and sellers, none of whom represents a large part of the market, and firms are price settersD. there are only a few large firms, who represent a large part of the market, and firms are price setters