The Habitat Centre is one of the most well$-$known places for holding conferences. It has contracted you to fix its network issue$-$connections to various Wi$-$Fi clients are dropping during meetings. After inspecting, you realize that the wireless standard needs to be upgraded to a faster standard using the BSS $($basic service set$)$ coloring technique to provide more network clients with higher speeds at the same time. Which one of the following standards will you use in this situation?

a$.$

$802\mathrm{.}11$g

b$.$

$802\mathrm{.}11$a

c$.$

$802\mathrm{.}11$n

d$.$

$802\mathrm{.}11$ax