Which of the following statements is TRUE?

A. If the net present value (NPV) is negative, its internal rate of return (IRR) is greater than required rate of return.

B. If the profitability index (PI) is less than 1, its net present value (NPV) should be less than 0.

C. If the net present value (NPV) is equal to 0, its internal rate of return (IRR) is greater than required rate of return.

D. If the net present value (NPV) is greater than 0, its profitability index (PI) will equal to 0.