Problem A mechanical engineer at Anode Metals is considering five equivalent projects, some of which have different life expectations Salvage value is nil for all alternatives. Assuming that the company's MARR is 13% per year, determine which should be selected (a) if they are independent and (b) if they are mutually exclusive. (c) Explain why your selection in part (b) is correct Net Annual Income, $/Year First Life, Years Cost, $ A 20,000 B 10.000 -15,000 D-60,000 -80000 +2.000 3.800 +11,0{1} +9,000 6 12 12