For the following table, assume a MARR of 10% per year and a useful life for each alternative of six years that equals the study period. The rank-order of alternatives from least capital investment to greatest capital investment is Do Nothing †’ A †’ C †’ B. Complete the IRR analysis by selecting the preferred alternative.

(a) Do nothing

(b) Alternative A

(c) Alternative B

(d) Alternative C

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Do Nothing → A A→ C C→B A Capital -$15,000 -$2,000 -$3,000 investment A Annual 4,000 900 460 revenues A Annual costs A Market value -1,000 -150 100 6,000 -2,220 3,350 A IRR 12.7% ??? 10.5%