You are a solutions architect who works at a large retail company that is migrating its existing infrastructure to AWS. You recommend that they use a custom VPC$.$ When you create a VPC$,$ you assign it to an IPv$4$ Classless Inter$-$Domain Routing $($CIDR$)$ block of $10\mathrm{.}0\mathrm{.}1\mathrm{.}0/24($which has $256$ total IP addresses$).$ How many IP addresses are available?

$256$

$246$

$250$

$251$