If an administrator configures interfaces E0, E1 and S0 to support NAM high-availability failover, what information is exchanged over these interfaces?

A.
NAM run-time data activities, UDP heartbeat signals, redundant heartbeat signals

B.
NAM run-time data activities, UDP heartbeat signals and backup and recover database snapshots

C.
NAM run-time data activities and UDP heartbeat signals

D.
NAM run-time data activities and IP Based heartbeat signals