The two alternatives shown are under consideration for improving security at a county jail in Travis County, New York. Determine which one, if either, should be selected based on a B/C analysis, an interest rate of 7% per year, and a 10-year study period. Extra Cameras (EC) First cost, $ 38,000 Annual M&O, $ per year 49,000 Benefits, $ per year 84,000 Disbenefits, $ per year 16,000 The B/C ratio is Select alternative extra cameras New Sensors (NS) 87,000 84,000 87,000