Which statement about the beamforming (ClientLink) feature on the Cisco WLC is true?

A.
It works only with 802.11n APs and clients.

B.
It works only with 802.11n APs and 802.11b/g clients.

C.
It provides a signal gain when the AP transmits towards the client.

D.
It provides a signal gain in both directions (AP to client and client to AP).