A Profit-Maximizing Firm Should Hire an Input as Long as the

Multiple Choice

A profit-maximizing firm should hire an input as long as the

A) firm can increase its total revenue.
B) price of the input doesn't exceed the price of the other inputs used in the firm's production.
C) marginal revenue product of the input is at least as much as the cost of hiring the input.
D) marginal revenue product of the input is greater than the marginal revenue product of other inputs the firm is using.