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 2.9 years and a 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? O Project A only O Project B only O Both A and B O Neither A nor B O Either, but not both projects