19. When the present value of the cash inflows exceeds the initial cost of a project, the project should be: A) accepted because the payback period is less than the required time period. B) accepted because the profitability index is greater than 1 . C) accepted because the profitability index is negative. D) rejected because the internal rate of return is negative. E) rejected because the net present value is positive. 20. Samuelson Electronics has a required payback period of three years for all of its projects. Currently, th firm is analyzing two independent projects. Project A has an expected payback period of 2.9 years and net present value of $4,200. Project B has an expected payback period of 3.1 years with a net present value of $26,400. Which project(s) should be accepted based on the payback decision rule? A) Project A only B) Project B only C) Both A and B D) Neither A nor B E) Either, but not both projects