Given the data for two different alternatives in the table below, determine the best alternative using the incremental rate of return (AROR) analysis. MARR =9%. A B First cost $15,000 $20,000 O&M Cost/year 1,600 900 Benefit/year 8,000 9,000 Salvage value 3,000 4,600 Life in years 4 4

Given the data for three different alternatives in the table below, determine the best alternative using the incremental rate of return (∆RoR) analysis. MARR =9%.     A B C First cost $15,000 $25,000 $20,000 O &M Cost/ year 1,600 400 900 Benefit/year 8,000 13,000 9,000 Salvage value 3,000 6,000 4,600 Life in years 4 4 4   The better alternative between the second  increment (B – C) is:. Group of answer choices Alt. B Alt. C Alt. B or Alt. C Alt. A