How are IP multicast IGMP entries synchronized between vPC peers？（）

• A、 IGMP is not synchronized between vPC peers
• B、 Cisco Fabric Service carries IGMP entries across the vPC peer link
• C、 IP ARP synchronization under the vPC domain configuration also synchronizes IGMP
• D、 IGMP is flooded to the L2 domain， and there is no need to synchronize it between vPC peers