Please solve part b and c.DON'T ANSWER IF YOU ARE NOT SURE. I will give you good rating if the answers are right

In the development of a publicly owned, commercial waterfront area, three possible independent plans are being considered. Their costs and estimated benefits are given in the table to the right . Which planls) should be adopted, fany i the controling board wishes to inest any amount required,provided that the B-C ratio on the required investment PW (S000s) is at least 1.02 b. Suppose that 10% of the costs of each plan are reclassified as disbenefits. What percentage change in the B-C ratio of each plan results from the reclassification? c. Comment on why the rank-orderings in (a) are unaffected by the change in (b). PlanCosts Benefits A $132,000 $121.000 01,000160,000 143,000 8 123,000