3. A city municipality is considering various proposals regarding the waste disposal. All of the proposals involve several operations, but the charges for the operations differ in each proposal. An incremental B/C analysis, which was initiated but never completed, is given in the following table. 1 1 PW of PW of PW of B/C Incremental B/C Proposals Costs ($) Benefits ($) Disbenefits ($) Ratio 1 2 3 4 20 [a] 1.05 [e] [f] [g] 2 23 28 [b] 1.13 [h] 3 28 35 3 (c) [a] 51 4 1.34 6035 4 3. A city municipality is considering various proposals regarding the waste disposal. All of the proposals involve several operations, but the charges for the operations differ in each proposal. An incremental B/C analysis, which was initiated but never completed, is given in the following table. 1 1 PW of PW of PW of B/C Incremental B/C Proposals Costs ($) Benefits ($) Disbenefits ($) Ratio 1 2 3 4 20 [a] 1.05 [e] [f] [g] 2 23 28 [b] 1.13 [h] 3 28 35 3 (c) [a] 51 4 1.34 6035 4