2. Use the following independent project's cash flows for questions (a) through (d): Year Cash Flow -$28,000 $9,400 $12,000 $15,000 The marginal cost of capital is 12 percent. a. Calculate the payback period for this project. (1 pt) Calculate the discounted payback period for this project. (2 pts) c. Calculate the net present value of this project. What is the appropriate benchmark? Is the project acceptable? (3 pts) d. Calculate the internal rate of return for this project. What is the appropriate benchmark? Is the project acceptable? (3 pts) e. Calculate the profitability index for this project. What is the appropriate benchmark? Is the project acceptable? (3 pts)