Which of the following statements is incorrect? Select one: a. Other things equal, the payback period of a project remains the same when the WACC decreases. b. Other things equal, the NPV of a project increases when the WACC decreases. c. Other things equal, the discounted payback period of a project remains the same when the WACC decreases. O d. Other things equal, the possibility to accept a project based on the IRR method increase if the WACC decreases. e. Other things equal, the IRR of a project remains the same when the WACC decreases