Problem 8-21 NPV and Payback Period [LO 1, 4] Kaleb Konstruction, Inc., has the following mutually exclusive projects available. The company has historically used a three-year cutoff for projects. The required return is 14 percent. a. Calculate the payback period for both projects. (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) b. Calculate the NPV for both projects. (Do not round intermediate calculations and round your answers to 2 decimal places, e.9. 32.16.) c. Which project, if any, should the company accept