Consider a market with a large number N > 2 of firms. All firms sell identical goods and compete choosing prices (a la Bertrand). Two of these firms, called A and B, have marginal cost c = 50. The other N 2 firms have marginal costs d > $50. There are no fixed costs. The market demand curve is: q(p) = 200 p Which of these options characterizes a Nash Equilibrium for this game? A All firms choose a price of $50. B Firm A and B choose a price of $50, while the remaining N 2 firms choose a price of d. C All firms choose a price of d. D Firm A and B choose a price of d, while the remaining N 2 firms choose a price of 50/N . E All firms choose a price of $50/N .