Four different prefab-building locations have been suggested, of which only one will be selected. Cost and annual net cash- flow information are detailed in the table below. The annual net cash-flow series vary due to differences in maintenance, labour costs, transportation charges, etc. If the MARR is 10%, use ROR analysis to select the one economically-best location. Location Building cost, $ Annual cash flow, A B C D 200,000-275,000-190,000-350,000 $+22,000+35,000+19,500+42,000 Life, Years 30 30 30 30