A monopolist with a straight-line demand curve finds that it can sell two units at $12 each or 12 units at $2 each. Its fixed cost is $20 and its marginal cost is constant at $3 per unit. (A) Draw the MC, ATC, MR, and demand curves for this monopolist. (B) At what output level would the monopolist produce? (C) At what output level would a perfectly competitive firm produce?