The Following Table Shows the Total Output Produced by Different

The following table shows the total output produced by different units of a resource.Assume that the resource and output markets are both perfectly competitive.The equilibrium price of the resource is $15.00, and the equilibrium price of the product is $0.50. Table 28.2
Marginal revenue product (MRP) of a resource is the product of the marginal product of the resource and the marginal revenue.
Refer to Table 28.2.What is the marginal-revenue product of the third unit of the resource?

A) $6.50
B) $13.00
C) $17.50
D) $70.00
E) $20.00