The expected average rate of return for a proposed Investment of $524,300 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total income of $332,160 for the 4 years is (round to two decimal places) Os. 15.34% Ob. 1.27% Oc. 0.63% Od. 31.68% The amount of the average investment for a proposed investment of $136,000 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total income of $26,800 for the 4 years is Os. $26.800 Ob. $34.000 Oc. $68,000 Od. 56,700