Which two tasks must you perform when you implement LDP NSF on your network?

Which two tasks must you perform when you implement LDP NSF on your network? (Choose two.)
A. Enable NSF for BGP.
B. Implement direct connections for LDP peers.
C. Enable NSF for EIGRP.
D. Disable Cisco Express Forwarding.
E. Enable NSF for the link-state routing protocol that is in use on the network.