Imperfectly Competitive Firms Have a Demand Curve That ________ and a Marginal

Imperfectly competitive firms have a demand curve that ________ and a marginal revenue curve that ________ and is ________ the demand curve.

A) is horizontal; is horizontal; the same as
B) is horizontal; slopes downward; below
C) slopes downward; slopes downward; below
D) slopes downward; is horizontal; above
E) slopes downward; slopes downward; the same as