$4\mathrm{.}3-5$a$.$ Subnetting$($a$).$ Consider the three subnets in the diagram below.

What is the maximum # of interfaces in the $223\mathrm{.}1\mathrm{.}2/24$ network?

Question $6$ options:

$256$

$128$

There's no a priori limit on the number of interfaces in this subnet.

Two hosts, as shown in the figure.

$2**32$