Consider the following two mutually exclusive projects: Whichever project you choose, if any, you require a 15 percent return on your investment. a-1 What is the payback period for each project? (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) a-2 If you apply the payback criterion, which investment will you choose? Project A Project B b-1 What is the discounted payback period for each project? (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) b-2If you apply the discounted payback criterion, which investment will you choose? Project A Project B