When devices are in cluster mode， which new interfaces are created？（）

A.reth interfaces are used only for VRRP.
B.reth interfaces are the same as physical interfaces.
C.reth interfaces are pseudo-interfaces that are considered the parent interface for two physical interfaces.
D.Each cluster member has a reth interface that can be used to share session state information with the other cluster members.

A.a set of chassis clusters that fail over as a group
B.a set of devices that participate in a chassis cluster
C.a set of VRRP neighbors that fail over as a group
D.a set of chassis cluster objects that fail over as a group