You are considering the following two mutually exclusive projects. What are payback periods for the two projects? If the cutoff period is 2 years, which one would you choose to invest in? Year 0 1 2 3 Project A -$21.000 7.000 7.000 15.000 Project B -$21.000 15.000 5.000 7.000 2.47 years: 2.14 years; Project B 2.47 years; 1.86 years; Project B 2.68 years: 2.14 years; Project A 2.68 years: 1.86 years; Project B