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.

$\backslash$table$[[$First cost$,$ $$,$Extra Cameras $($EC$),$New Sensors $($NS$)],[$Annual M&O$,$ $ per year,$38,000,87,000],[$Benefits$,$ $ per year,$49,000,84,000],[$Disbenefits$,$ $ per year,$110,000,87,000]]$

The $\frac{B}{C}$ ratio is $$

Select alternative $($Click to select$)$