Which of the following is (are) true?
A) To assess a firm's demand for capital we must determine the present value of marginal revenue products and marginal factor costs of capital.
B) A firm maximizes profit in the hiring of capital when the MRP of capital is greater than the MFC of capital. C) A firm should hire less capital if the MRP of capital is greater than the MFC of capital.
D) A and B are true.