Learns the funds to the sharubolden. I mean the out of the kepe the funds and makes the investmeot 3) 18 Polat A film has an investment opportunity that has following expected end of your cash flows Yra 2 4 5 3 20 The firm's cost of capital is 10% ) 12 Points Calculate the net present value (NPV) of the investment. Based on the NPV, state if the firm should proceed with this investment b) 12 Polnts Calculate the payback period of this investment. c) 12 Points Calculate the discounted payback period of this investment. d) 12 Points] Explain the primary shortcoming of using payback as an investment decision-making criterion