A Residual Demand Curve

A residual demand curve:

A) shows the relationship between the market price and the quantity demanded by consumers at each price.
B) shows the relationship between a firm's output and the market price given the prices charged by the firm's rivals.
C) shows the relationship between a firm's output and the market price given the outputs of the firm's rivals.
D) shows the remaining demand for a good after a firm's rivals have sold their output.