3. (20) An engineering firm is considering replacing its old metal finishing machine with a new one: Option 1: Buy a new machine that will cost $15,000 (after trade-in of the old machine) plus require a $1000 per year annual maintenance fee (to be paid at the END of each year). Salvage value after 10 years = $1000. Option 2: Lease a machine for $3000 per year (to be paid at the END of each year) with no additional maintenance fee. Salvage value after 10 years = 0. Option 3: Repair old machine now (at time 0) for $5000 and pay $2000 per year in annual maintenance costs (to be paid at the END of each year). Salvage value after 10 years = 0