Which two statements about RPF checks in Multicast Source Discovery Protocol (MSDP) are
true? (Choose two)

A.
RPF Check should be done against the route to the source of the corresponding PIM-SM
domain.

B.
checking session advertisement (SA) messages causes massages looping.

C.
The RPF check ensures that there is a working redundancy for anycast RPs.

D.
RPF Check should be done against the route to the RP of the PIM-SM domain that originated
the SA.

E.
It prevents message looping, and session advertisement (SA) messages must be RPF
checked.