Consider five mutually exclusive alternatives IA El that have 10 year useful lives and no savo value Alternative Initial Cost Annual Benefit BC Rato $2.000 $4,000 $651 092 $5300 $885 1 00 $3000 $447 34 51.155 073 Given that MARRIS 12% and there is no do nothing aterative answer the following questions (a) and (b) (a) Using incremental approach, how many comparisons would be done before concluding the best alternative? Note consider broskoven as acceptable or good O A THREE OB TWO OC ONE OD. FOUR (b) What is the incremental benefit-cost ratio between alternatives and E? OA 2.08 OB. 228 OC. 175 OD. 191 Click to select your