13. Samuelson Electronics has a required payback period of three years for all of its projects. Currently, the firm is analyzing two independent projects. Project A has an expected payback period of 3.9 years and a net present value of $4,200. Project B has an expected payback period of 2.1 years with a net present value of $2,400. Which project() should be accepted based on the payback period decision rule? A. Project A only B. Project B only C. Both A and B D. Neither A nor B 14. The internal rate of return is defined as the A. maximum rate of return a firm expects to earn on a project. B. rate of return a project will generate if the project in financed solely with internal funds. C. discount rate which causes the net present value of a project to equal zero. D. discount rate that causes the profitability index for a project to equal zero. 5