c) Is the project economically viable? The two alternatives shown below are under consideration for improving security at a county jail. Select one based on a BC analysis at an interest rate of 7% per year and a 10-year study period. First cost, S Annual M& O, Slyear Benefits, Sper year Disbenefits, S per year Alternative A 48000 59000 120000 36000 Alternative B 97000 74000 170000 10000