Which of the following configurations can be performed to implement fast failure detection on a network?

Which of the following configurations can be performed to implement fast failure detection on a network?
A . Reduce the holdtime of Join/Prune messages.
B . Reduce the interval for an interface to send Hello messages.
C . Set up a PIM BFD session between network segment neighbors.
D . Reduce the interval for sending Join/Prune messages.

Answer: BC