Engineering economic analysis provides useful input in all of the following situations except which one? (a) Determining how much we should pay for a machine that will provide a savings. (b)...

Engineering economic analysis provides useful input in all of the following situations except which one? (a) Determining how much we should pay for a machine that will provide a savings. (b) Determining the priority of investing our company’s retained earnings. (c) Illustrating the economic advantages of one alternative over other feasible choices. (d) Convincing management that one person should be hired over another.