Suppose the firm has the ability to be a price-maker. The profit maximizing level of output and price is the ability of a monopoly to influence prices by controlling the quantities that it produces in the market. Read below about monopoly.
Monopoly is a market structure characterized by a single seller, selling a unique product in the market. In a monopoly market, the seller faces no competition, as he is the sole seller of goods with no close substitute.
Therefore, the correct answer is as given above
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