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Question 5 20 pts The plant manager at a small machine shop is considering three project proposals, with cash flows as shown in the table below. All proposed projects have a 20-year useful life and the company has a MARR of 6%. Proposal A B C Initial Cost, $ 50,000 22,000 15,000 Annual net savings, $/yr 4,650 2,077 1,403 Proposal's Annual Rate of Return 6.8% 7.0% 6.9% Determine which, if any, of the proposals should be selected if they are mutually exclusive projects. Notes: The Do-nothing alternative is viable, as the company does not necessarily have to invest. Your solution must be based on a Rate of Return analysis