There are three alternatives: X, Y, and Z with 10% MARR. Which alternative should be chosen based on the following conditions and why? Please show all work.

For X, the initial cost is $10k, yearly revenue is $6K, salvage is $1k and the useful life is calculated as 2 yrs.

For Y, the initial cost is $15k, yearly revenue is $10K, salvage is -$2k, and the useful life is 3yrs.

For Z, the initial cost is $12k, yearly revenue is $5K, salvage is $3k and the useful life is 4yrs.