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