Each day, a service provider counts the number of service failures. Since there can be multiple service failures $($i$.$e$.,$ non$-$conformances$)$ each day, a c$-$chart is appropriate. The total number of service failures over a $25$ day period is $45.$ What is the upper control limit for the $c-$chart?

$4\mathrm{.}63$

$0$

$5\mathrm{.}82$

$1\mathrm{.}8$