Which of the following statements is true if the NPV of a project is - $4,000 (negative

Question:

Which of the following statements is true if the NPV of a project is - $4,000 (negative $4,000) and the required rate of return is 5 percent?
a. The project's IRR is less than 5 percent.
b. The required rate of return is lower than the IRR.
c. The NPV assumes cash flows are reinvested at the IRR.
d. The NPV would be positive if the IRR was equal to 5 percent.