单选题 Which of the following statements regarding marginal costs (MC) and average variable costs (AVC) is most accurate?
  • A. MC = AVC when AVC is at its minimum.
  • B. MC ＜ AVC when AVC is at its minimum.
  • C. MC = Average total cost when AVC is at its minimum.
【正确答案】 A
【答案解析】MC = AVC at minimum average variable cost. MC = ATC at minimum average total cost.