A firm is considering hiring an additional worker. The marginal product of labor is 5 units, and the price per unit is \$15. If the worker's wage is \$60, should the firm hire the worker?

• A. Yes, because the marginal revenue product (\$75) exceeds the wage (\$60).
• B. Yes, because the marginal product of labor is positive.
• C. No, because the price per unit is too low.
• D. No, because the marginal revenue product (\$75) is less than the wage (\$60).

Answer: (A)