The figure given below shows a situation where the producers of good X are forming an international cartel. Here, MR = Marginal Revenue, MC = Marginal Cost, and P = Price. The cartel use monopoly pricing for its output. Price ( dollars per unit ) 0 300 500 600 1,000 1,500 MC curve of cartel (= supply curve if there is perfect competition) Demand MR Quantity (Millions of units ) 100 150 I f the world market for good A were perfectly competitive, the price per unit would be _____ and the industry profits (before subtracting any fixed costs) would be _____ . a. $600; $90.0 billion b. $600; $ 22.5 billion c. $1,000; $50.0 billion d. $500; $10.0 billion