The expected average rate of return for a proposed investment of $555,800 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total net income of $225,280 for the 4 years is (round to two decimal points) Oa. 0.41% Ob. 20.27% Oc. 0.81% Od. 10.13%