Which of the following IP addresses could be assigned to a host?

$127\mathrm{.}200\mathrm{.}102\mathrm{.}67/27$

$63\mathrm{.}71\mathrm{.}189\mathrm{.}192/26$

$207\mathrm{.}87\mathrm{.}255\mathrm{.}133/28$

$42\mathrm{.}16\mathrm{.}8\mathrm{.}11/30$