A. The unique IP address is defined on each spine node that belongs to a fabric and is used to establish MP-BGP EVPN and VPNv4 adjacencies with the spine nodes in remote sites.

B. The unique IP address is defined on each spine node that belongs to a fabric and is used to establish VXLAN adjacencies with the spine nodes in remote sites.

C. The common anycast address is shared by all the spine nodes in the same site and is used to perform headend replication for BUM traffic.

D. The common anycast address is shared by all the spine nodes at the same site and is used lo source and receive unicast VXLAN data plane traffic.