Which three statements are true of the Link Aggregation Control Protocol （LACP）？（）

• A、LACP is used to connect to non-Cisco devices.
• B、LACP packets are sent with the command channel-group 1 mode desirable.
• C、LACP packets are sent with the command channel-group 1 mode active.
• D、Standby interfaces should be configured with a higher priority.
• E、Standby interfaces should be configured with a lower priority.