Which of the following is the resident subnet ID for IP address $10\mathrm{.}7\mathrm{.}99\mathrm{.}133/24?$

$10\mathrm{.}0\mathrm{.}0\mathrm{.}0$

$10\mathrm{.}7\mathrm{.}0\mathrm{.}0$

$10\mathrm{.}7\mathrm{.}99\mathrm{.}0$

$10\mathrm{.}7\mathrm{.}99\mathrm{.}128$