The Acme Company Is a Perfect Competitor in Its Input

Multiple Choice

The Acme Company is a perfect competitor in its input markets and a monopolist in its output market. Its average product of labor is 30, the marginal product of labor is 20, the price of labor is $20, and the price of the output is $5. For Acme Company, the marginal revenue product of labor:

A) is $100.
B) is $150.
C) is $400.
D) is $600.
E) cannot be determined with the information provided.