Your company needs to determine the payback period for the following cash flows: cost = $1,500,000 (out) cash flow year 1: $380,000 (in) cash flow year 2: $380,000 (in) cash flow year 3: $472,000 (in) cash flow year 4: $472,000 (in) cash flow year 5: $472,000 (in) The payback period (in years) of this project is: a. 3.89 Ob. 3.71 Oc. 3.44 d. 3.57