A. Explain why a monopoly or a perfectly competitive firm does not consider a rival firm's behavior, but an oligopoly and a monopolistically competitive firm do. [3 points] B. Compare the two markets, perfect competition and monopolistic competition, in terms of these three criteria: excess capacity, mark up and product variety. Based on your analysis, is monopolistic competition efficient? [3 points]C. What are some of the drawbacks of the traditional models of oligopoly? ls game theory a better tool to study oligopoly market? Explain your reasoning. [3 points]