3- The correct aftertax cash flows for the three alternative projects have been derived by your analytical team. These are given in Tabie 4. What discount rate(s) is(are) appropriate for these alternatives? What discount rate is appropriate for the small addition alternative? Justify your measure. Compute their net present values, internal rate of return, and payback periods. Table 3 MACRS Depreciation Rates Recovery Year -_n 5- -year property 20% 32% 19% 12% 11% \"Industrial biiigsmustbedeprembd were 31.5-yearperiod using shaightlinewith'li'iecn'ie-i'lalfmordl'l