You are designing a wireless network for a client. Your client needs the network to support a data has a wireless telephone system installed that operates at $2\mathrm{.}4GHz.$

Which $802\mathrm{.}11$ standard works best in this situation?

$802\mathrm{.}11g$

$802\mathrm{.}11b$

$802\mathrm{.}11a$

$802\mathrm{.}11n$