Evaluating two projects using alternative decision rules. Two projects have the expected cash flows shown below. The projects have similar risk characteristics, and their cost of capital is 10 percent. a. Calculate the net present value (NPV) of each project. According to the NPV rule, which project should be accepted if they are independent? What if they are mutually exclusive? b. Calculate the payback period and the discounted payback period of each project. If the two projects are mutually exclusive, which project should be accepted? c. Calculate the internal rate of return of each project. Which project should be accepted if they are independent? If they are mutually exclusive? d. Calculate the profitability index of each project. Which project should be accepted if they are independent? If they are mutually exclusive? e. Based on your answers to questions a-d, which criterion leads to the best investment decision if the projects are independent? What if they are mutually exclusive