Which statement is correct about IPv6 RA guard?

A.
In host mode, all RA and router redirect messages are allowed on the port.

B.
The RA guard feature is supported only in the egress direction; it is not supported in the ingress
direction.

C.
The RA guard feature is not supported on auxiliary VLANs and private VLANs.

D.
The RA guard feature compares configuration information on the Layer 2 device with the
information in the received RA frame.