124.250 80212 3. Three entirely separate parts (a ) what is the value of the following cash flow situation at the year ? Three alternatives are being considered. Alternative A has a useful life of 6 years; Alternative B, 2 years; and Alternative C, 3 years. What is the difference (in years) between the planning horizons determined by the longest life approach and the least-common-multiple approach? a. 0 years 6 years 12 years 30 years c. d