The Following Figure Depicts a Firm's Long-Run Average Total Cost

The following figure depicts a firm's long-run average total cost and selected short-run average total cost curves.

-Refer to the figure above.The firm is currently producing at C.In the short run,the firm should ________.

A) reduce its production to Q₁
B) not change its production plan
C) invest in capital and produce at a lower cost
D) increase its production to Q₃ to benefit from economies of scale