Which of the following is NOT one of the IP address ranges defined in RFC $1918$ that are commonly used behind a NAT server?

answer

$10\mathrm{.}0\mathrm{.}0\mathrm{.}1$ to $10\mathrm{.}255\mathrm{.}255\mathrm{.}254$

$172\mathrm{.}16\mathrm{.}0\mathrm{.}1$ to $172\mathrm{.}31\mathrm{.}255\mathrm{.}254$

$169\mathrm{.}254\mathrm{.}0\mathrm{.}1$ to $169\mathrm{.}254\mathrm{.}255\mathrm{.}254$

$192\mathrm{.}168\mathrm{.}0\mathrm{.}1$ to $192\mathrm{.}168\mathrm{.}255\mathrm{.}254$