please provide the solution of 5-10 with explanation

5-10. Three alternative designs are being consid ered for a potential improvement project related to the operation of your engineering department. The prospective net cash flows for these alterna- tives are shown below. The MARR is 15% per year. End of Alternative Net Cash Flows Year, k A. B C -$200,000 -$230,000 -$212,500 90,000 108,000, - 15,000 122,500 90,000 108,000 122,500 "Continuing uniform cash flow