A new inventory management system for ABC Company could be developed at a cost of $260,000. The estimated net operating costs and estimated net benefits over six years of operation would be: Vear Estima'ted net Estimated net operating cost benefits 0 350,000 ' a. What would the payback period be for this investment? Would it be a good or bad investment? Why? b. What is the ROl for this investment? c. Assuming a 9% discount rate, what is this investment's NPV