Consider the following two mutually exclusive projects: Year 0 1 2 3 4 Cash Flow (A) -$321,236 26,200 51,000 57,000 389,000 Cash Flow (B) -$15,614 5,027 8,888 13,104 9,399 Whichever project you choose, if any, you require a 6 percent return on your investment. Required: (a) What is the payback period for Project A? (Click to select) (b)What is the payback period for Project B? (Click to select) (c) What is the discounted payback period for Project A? (Click to select) (d)What is the discounted payback period for Project B? (Click to select)