XYZ Corporation is a monopoly. If XYZ sells one more unit of output, its total revenue will decrease. This implies thata. the firm's marginal revenue is negative.b.the firm cannot be maximizing profit; to increase profit, the firm should sell a smaller quantity at a higher price.c.the firm is facing inelastic demand.d.all of the above are true.e.(a) and (c) only are true.
