Which of the following is a possible reason why a firm wants to shut down in the short run?

A) The market price is too low relative to the firm's average total cost.

B) The market price is too low relative to the firm's average fixed cost.

C) The market price is too low relative to the firm's average variable cost.

D) The market price is too high, thus the quantity demanded is too low. The number of consumers each firm is serving is too small.