The Marginal Product of Labor Is (Holding Capital Stock Constant)

Multiple Choice

The marginal product of labor is (holding capital stock constant)

A) the difference between what the firm can produce with its current labor force and what it would produce if it hired one more worker.
B) the product between what the firm can produce with its current labor force and what it would produce if it hired one more worker.
C) the sum of what the firm can produce with its current labor force and what it would produce if it hired one more worker.
D) the ratio of between what the firm can produce with its current labor force and what it would produce if it hired one more worker.