Total revenue is constant for a firm operating in a competitive industry. The correct option is C.
A perfectly competitive firm's total revenue is determined by the amount of output it chooses to produce, as well as the market price. As a result, total revenue equals the quantity of output sold multiplied by the market price.
The average revenue of a company is the total revenue earned divided by the total number of units sold. The marginal revenue of a competitive firm is always equal to the average revenue and price. This is due to the fact that the price remains constant despite varying levels of output.
Thus, the ideal selection is option C.
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