What is the benefit of using Anycast RP via RFC 4610 for IP multicast RP redundancy？（）    

• A、 Improves convergence of the multicast network due to enhanced RPF checks
• B、 Simplifies the number of control plane protocols over other RP redundancy methods
• C、 Eliminates the use of Protocol Independent Multicast （PIM） in the topology
• D、 Increases the administrative distances in Multicast Source Discovery Protocol （MSDP） configuration