The following graph represents a natural monopoly. a. Why is this firm considered a natural monopoly? b. If the firm is unregulated, what price and output would maximize its profit? What would be its profit or loss? c. If a regulatory commission establishes a price with the goal of achieving allocative efficiency, what would be the price and output? What would be the firm's profit or loss? d. If a regulatory commission establishes a price with the goal of allowing the firm a normal profit, what would be the price and output? What would be the firm's profit or loss? e. Which one of the prices in parts b, c, and d maximizes consumer surplus? What problem, if any, occurs at this price?