A manager wants to build a $3\backslash$sigma $($i$.$e$.,$ with confidence level $99\mathrm{.}73\%)$ mean$-$chart for a process. Suppose that the centre line $($x$)$ for the mean of the process is $10$ units, and the standard deviation of the process is $3.$ If samples of size $9$ are to be taken, the Upper Control Limit $($UCL$)$ and Lower Control Limit $($LCL$)$ will be

Question $14$ options:

$4$ and $16$

$12$ and $8$

$19$ and $1$

$13$ and $7$