A class B network address of $131\mathrm{.}1\mathrm{.}0\mathrm{.}0$ is given and you need to create $4$ subnets with minimum hosts as $9$AB$,8$BC$,3$DE and $2$AD$.$ Where A$,$B$,$ C$,$ D and E are taken away from your student number as explained in the table below. The student number taken here is $2312948210$ and repeating number are valid for this question