You add a multicast source to a network. The source’s DR sends register messages to the RP
However, multicast clients are not able to receive traffic from the source. What are two causes of
this problem? (Choose two.)

A.
A reject policy is configured on the designated router.

B.
The RP did not receive a PIM join message for the group specified.

C.
A reject policy is configured on the RP.

D.
The designated router must send a null register message to the RP.

Explanation: