A competitive firm maximizes profit at the output level where
A
Price equals marginal cost
B
The slope of the firm's profit function is equal to zero
C
Marginal revenue equals marginal cost
D
All of the above
Correct Answer: All of the above
A competitive firm maximizes profit at the output level where Price equals marginal cost, The slope of the firm's profit function is equal to zero and Marginal revenue equals marginal cost.