our mutually exclusive alternative 12 points 12 points Consider fou s75.0 Sso.o Sis.O sooo 120 annual 18.8 benetit Each alternative alternative has a 5-year useful life and no sal MARR is 10%. Which alternative age value. The MARR is 10%. Which should be selected, based on (a) The payback period (b) Future worth analysis (c) Benefit-cost ratio analysis