9) Consider an industry with the demand curve (D) and marginal cost curve (MC) shown in the accompanying diagram. There is no fixed cost. If the industry is a singleprice monopoly, the monopolist's marginal revenue curve would be MR. Answer the following questions by naming the appropriate points or areas. a. If the industry is perfectly competitive, what will be the total quantity produced? At what price? b. Which area reects consumer surplus under perfect competition? Under single-price monopoly? c. If the industry is a single-price monopoly, what quantity will the monopolist produce? Which price will it charge? d. Which area reects the single-price monopolist's profit? Which area reects the deadweight loss to society from single-price monopoly? f. If the monopolist can price-discriminate perfectly, what quantity will the perfectly price- discriminating monopolist produce? 5