QUESTION 3 For the below ME alternatives, which machine should be selected based on the PW analysis. MARR=10% Machine A Machine B Machine C First cost, $ 10000 Annual cost, $/year 6,000 4,000 Salvage value, $ 5,000 1,000 Life, years Answer the below questions: A- PW for machine A= QUESTION 4 For the below ME alternatives, which machine should be selected based on the PW analysis. MARR=10% Machine A Machine B Machine C First cost, $ Annual cost, $/year Salvage value, $ Life, years Answer the below questions: B-PW for machine B= 16,236 9,772 4,000 15000 9,474 4,000 30000 29,667 6,000 5,000 10000 4,000 1,000