In a perfectly competitive market,the number of sellers must be large enough that

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In a perfectly competitive market, the number of sellers must be large enough that none of them can significantly alter the price of the product. This is because each seller is only a small part of the overall market, and any attempts by an individual seller to raise prices will cause demand to shift to other sellers who offer lower prices. Therefore, in a perfectly competitive market, sellers are price-takers rather than price-setters. Additionally, in a perfectly competitive market, all products sold by each seller are essentially identical, so option C is incorrect. While it may be easy for a particular firm to leave the market, there is no requirement that this be the case in a perfectly competitive market, so option D is also incorrect. Finally, while economic profits may be small or even zero in a perfectly competitive market, there is no guarantee that they will be negative, so option A is also incorrect.

In a Perfectly Competitive Market,the Number of Sellers Must Be