单选题 Which of the following most accurately describes the condition that typically exists when marginal product is at a maximum?

A. Marginal cost is at a minimum.
B. Average product is at a minimum.
C. Average variable cost is increasing.

【正确答案】 A

【答案解析】Marginal product is at a maximum when marginal cost is at a minimum. At the corresponding labor and output levels, average variable cost is decreasing and average product is increasing.