Which technique can you use to detect forwarding path failures at a uniform rate, and reconvergence times will be consistent and predictable when your routers are in the same broadcast domain?

Which technique can you use to detect forwarding path failures at a uniform rate, and reconvergence times will be consistent and predictable when your routers are in the same broadcast domain?
A . Enable BFD on your routers.
B . Configure your routers with IP-SLA to ping the peer router.
C . Configure your routers with IP-SLA and track to ping the peer and switch to a default route if the pings fail.
D . Tune your routing protocol timers.

Answer: A