8.37 The four alternatives described below are being evaluated by the rate of return method. (a) If the proposals are independent, which should be selected at a MARR of 16% per year? (b) If the proposals are mutually exclusive, which one should be selected at a MARR of 9% per year? (c) If the proposals are mutually exclusive, which one should be selected when the MARR is 12$ per year? When compared with Alternative Initial Investment, $ Alternative B c -40.000 29 B - 75,000 15 1 - 100.000 16 7 20 D - 200.000 10 12