For the following set of cash flows, Year 0 1 2 3 Cash Flow -$8,800 3,800 3,300 5,500 a. What is the NPV at a discount rate of 0 percent? b. What is the NPV at a discount rate of 14 percent? c. What is the NPV at a discount rate of 23 percent? d. What is the NPV at a discount rate of 28 percent