E Mart is considering purchasing a new inventory control system featuring state-of-the-art technology. Two vendors have submitted proposals to supply E Mart with the new system. The system offered by Vendor C requires an initial outlay of $325,000 and has a useful life of 7 years. The expected cash inflows from the system are $65,000 for each of the 7 years. Vendor D has proposed to sell E Mart a system that will require an initial outlay of $140,000 and has an 7-year life. Vendor D's system is expected to provide cash inflows to E Mart of $42,000 per year for the 7 years. c. Based on your answer to the previous questions regarding payback, which should you accept, if any, if your required payback period were 4 years? Why?