LDAP is being used throughout the Company wireless network.  Which statement about the  Lightweight Access Point Protocol （LWAPP） protocol is true？（）

• A、 The processing of 802.11 data and management protocols and access point capabilities is  distributed between a lightweight access point and a centralized WLAN controller.
• B、 LWAPP advertises its WDS capability and participates in electing the best WDS device for the  wireless LAN.
• C、 LWAPP aggregates radio management forward information and sends it to a wireless LAN  solution engine.
• D、 LWAPP authenticates all access points in the subnet and establishes a secure communication  channel with each of them.
• E、 None of the other alternatives apply