You need to create an Azure virtual network to host $10$ testing stations. Which of the following address spaces has just the right number of IP addresses for the $10$ computers?

a$.$

$192\mathrm{.}169\mathrm{.}1\mathrm{.}0/30$

b$.$

$192\mathrm{.}168\mathrm{.}1\mathrm{.}0/29$

c$.$

$192\mathrm{.}168\mathrm{.}1\mathrm{.}0/27$

d$.$

$192\mathrm{.}168\mathrm{.}1\mathrm{.}0/28$