Refer to the exhibit. Which two Lightweight Access Point statements are true？（）
- A An AP that has been upgraded from an autonomous AP to lightweight AP will only function in conjunction with a Cisco Wireless LAN controller.
- B LWAPP increases the amount of processing within the APs， enabling them to support filtering and policy enforcement features.
- C WLAN controllers provide a single point of management.
- D Lightweight APs require local configurations using local management.
- E Real time events such as authentication， security management， and mobility are handled by the lightweight AP.
- F Autonomous APs receive control and configuration information from a WLAN controller.