ollowing three mutually exclusive alternatives are being considered for investment. Using a 10-year analysis period and an interest rate of 9%, select the best possible investment. Use of present worth analysis is required. Alternative Initial Cost Benefits X $2,500 $275 at the end of year 1 and increasing at the rate $65 per year from year 2 through year 9 and none in year 10. Y $1,300 $525 at the end of year 1 and decreasing $35 per year thereafter Z $5,000 $790 at the end of every year with a salvage value of $900