All the alternatives have no salvage value. If the MARR is 12%, which alternative should be selected? Solve the problem by payback period. Solve the problem by future worth analysis. Solve the problem by benefit-cost ratio analysis. If the answers in parts (a), (b), and (c) differ, explain why this is the case. Consider three mutually exclusive alternatives. The MARR is 10%. For Alt. x, compute the benefit-cost ratio. Based on the payback period, which alternative should be selected? Determine the preferred alternative based on an exact economic analysis method