For Any Downward-Sloping,straight-Line Demand Curve,the Marginal Revenue Curve Always

For any downward-sloping,straight-line demand curve,the marginal revenue curve always

A) is the additional money required to make one additional unit.
B) falls at a rate twice as fast as the demand curve.
C) falls at a rate half as fast as the demand curve.
D) remains the same since there is a one-to-one relationship.
E) reacts as the direct inverse of the original line.