For Any Firm in Any Market Structure, a Factor's Marginal

For any firm in any market structure, a factor's marginal revenue product is

A) marginal revenue multiplied by total product.
B) the change in revenue caused by the sale of an additional unit of output.
C) the increase in output resulting from the use of an additional unit of the factor multiplied by the cost of that factor.
D) the average product of the factor multiplied by the price of the output.
E) the change in revenue caused by the sale of the product contributed by an additional unit of input.