Suppose that for each firm In the competitive market for potatoes, long - run average cost is minimized at 20: per pound when 500 pounds are grown, The demand for potatoes is Q = 10,00dip, Ir the long - run supply curve is horizontal, then how many firms will this industry sustain in the long run? O A 100 OB. O O C. 50,000 O D. There is not enough information to