Samsunge 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 4 years and a net present value of $6,800. Project B has an expected payback period of 2 years with a net present value of $28,400. Which projects should be accepted based on the payback decision rule? Project A only Project B only Both A and B Neither A nor B