Answer: The correct answer is " (D) produces output and incurs an economic loss. ".
Explanation: In the short run, if AVC < P < ATC, a perfectly competitive firm produces output and incurs an economic loss.
because if the average variable cost (AVC) is less than the price and the average total cost (ATC) the company will produce and incur an economic loss just because producing, it loses less than if it did not produce.