Why does the Access Point send all frames it receives from wireless stations to the wireless controller.

Question $12$ options:

for security reasons the controller must always apply deep packet inspection

to convert the frame from $802\mathrm{.}3$ to $802\mathrm{.}11$

to convert the frame from $802\mathrm{.}11$ to $802\mathrm{.}3$

This operation is defined by the IEEE $802\mathrm{.}11$ protocol.