i Price Price (a) -MC (b) SO S1 ATC P3 P3 P2 P2 P1 P1 D1 DO 02 03 Quantity OW QYOX QE Quantity Refer to the figure above. When the market is in a long-run equilibrium at point Z in panel (b), the firm represented in panel (a) will O a. choose to increase production to increase profit. O b. exit the market. O c. have a negative accounting profit. O d. have a zero economic profit