For the following set of cash flows, Year 0 1 2 3 Cash Flow -$ 8,600 4,100 4,400 4,600 a. What is the NPV at a discount rate of O percent? NPV b. What is the NPV at a discount rate of 9 percent? NPV c. What is the NPV at a discount rate of 19 percent? NPV d. What is the NPV at a discount rate of 24 percent? NPV