c. Consider the case where the market described above includes two firms that compete by choosing quantity (i.e., the Cournot model). Assume a symmetric game where the two firms produce a homogenous product, have the same cost functions (MC1 = MC2 = $20), and choose output simultaneously. Solve for each firm's best-response function and solve for each firm's equilibrium output, the market price, and profit. Consider a monopolist with the following inverse demand function: P = 260 - Q. The monopolist's marginal cost of production equals $20 per unit and is constant.