In a single$-$server M$/$M$/1$ queuing system, the arrival rate $($A$)$ is $5$ customers per hour, and the average time a customer spends in the system $($W$)$ is $0\mathrm{.}2$ hours. Calculate the service rate $().$ Then, determine the utilization $($p$).$ What is the value of p$?$

$21$

Page $3$:

$3$

A$)0\mathrm{.}2$

Page $4$:

$4$

B$)0\mathrm{.}5$ hours

C$)0\mathrm{.}6$

D$)0\mathrm{.}8$