DYI Construction Co. is considering a new inventory system that will cost $700,000. The system is expected to generate positive cash flows over the next four years in the amounts of $350,000 in year one, $325,000 in year two, $150,000 in year three, and $180,000 in year four. DYl's required rate of return is 8%. What is the payback period of this project? 3.50 years None is correct. 2.50 years 2.17 years 2.00 years