What is the relationship between a monopolist's demand curve and the market demand curve? a. a monopolist's demand curve is greater than the market demand curve. b. a monopolist's demand curve is the same as the market demand curve. c. a monopolist's demand curve is upward sloping and the market demand curve is downward sloping. d. the market demand curve has twice the slope of a monopolist's demand curve. e. the market demand curve is the sum of the demand curves for all firms in the market. what is the relationship between a monopolist's demand curve and its marginal revenue curve? a. a monopolist's marginal revenue curve has twice the slope of its demand curve due to diseconomies of scale. b. a monopolist's demand curve is the same as its marginal revenue curve. c. a monopolist's marginal revenue curve has twice the slope of its demand curve, because to sell more output, a monopoly must lower price. d. a monopolist's demand curve is downward sloping and its marginal revenue curve is upward sloping. e. a monopolist's marginal revenue curve has half the slope of its demand curve, because to sell more output, a monopoly must lower price.