12.37 The profitability index at 10% per year for a project that has an initial investment of $400,000, an AOC of $80,000 per year, revenue of $170,000 per year, and a salvage value of $60,000 after its 5-year life is closest to: (a) 0.95 (b) 1.06 (c) 1.38 (d) 0.86