Which of the Following Statements Is Incorrect

Which of the following statements is incorrect?

A) Unlike net present value, internal rate of return does not use discounted cash flows.
B) Internal rate of return is also called the economic rate of return of a given project.
C) Internal rate of return is the discount rate that makes the present value of all project cash flows equal to zero.
D) A company should accept a project whenever the internal rate of return is greater than the appropriate risk-adjusted discount rate.