Smith, a technician, needs to configure a wireless network for a company. Which wireless standard can he choose to get $600Mbps$ bandwidth over either the $2\mathrm{.}4GHz$ or the $5GHz$ frequency spectrum?

$802\mathrm{.}11g$

$802\mathrm{.}11b$

$802\mathrm{.}11n$

D $,802\mathrm{.}11$a