What causes multicast traffic to permanently stay on the shared tree and not switch to the source tree?

What causes multicast traffic to permanently stay on the shared tree and not switch to the source tree?
A . The SPT threshold is set to infinity.
B . The RP IP address is configured incorrectly.
C . The RP announcements are being filtered.
D . SSM range is being used.

View Answer

Answer: C

Explanation:

https://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers/mcst_ ovr.html