Show your work for full credit 1. (25pts) Calculate the net present value (NPV) and internal rate of return (IRR) for Projects A and B. Assume a discount rate of 5%. Should the firm accept or reject these projects? If Project A and Project B are mutually exclusive, which is the better choice? Explain. Under what circumstances should the modified internal rate of return be used instead of the standard internal rate of return? Project A Project B Year Cash Flow Year Cash Flow 0 -$100,000 -$1 1 $80,000 $0 2 $0 $0 $80,000 $100 0 1 2 3 3