8、An analyst does research about marginal cost and average cost.In the short run,when a firm's output increases beyond the point at which marginal cost equalsaverage variable cost, average fixed cost:【单选题】
A:and average total cost both increase.
B:decreases and average variable cost increases.
C:decreases and average total cost increases.
发布时间:2024-06-04 01:14:58