3. Payback period. a. Calculate the payback period for each project from the following cash flows. Indicate fractions of a year, for example, 5.72 years. For each project, indicate if the project should be undertaken using the payback period and assuming the firm requires a payback period of 3 years: Original Investment Year 1 Year 2 Year 3 Year 4 4A (65,000.00) 9,000.00 16,000.00 17,000.00 25,000.00 (23,000.00) 8,000.00 8,000.00 8,000.00 8,000.00 4C Payback Period Undertake Project? Discuss, very briefly using the payback period criteria, why or why not. 4A 4B