3.14 A firm is considering three mutually exclusive alternatives as part of a production improvement program. The relevant data are: Installation cost $10,000 $15,000 $20,000 Uniform annual benefit $1,625 $1,625 $1,890 Useful life (years) For each alternative, the salvage value at the end of useful life is zero. At the end of 10 years, alternative A could be replaced by a copy of itself that has identical cost and benefits. The MARR is 6%. If the analysis period is 20 years, then which alternative should be selected