单选题 Which of the following most accurately describes the relationship between marginal cost (MC), average variable cost (AVC), marginal product (MP), and average product (AP)? A. When MP＜AP, MC＜AVC. B. When MP＞AP, MC＞AVC. C. When MP=AP, MC=AVC.

【正确答案】 C

【答案解析】At some output level Q and corresponding labor input L, MC = AVC and MP = AP. At Q and L, AVC is at its minimum and AP is at its maximum. (Hint: draw the curves).