Which purpose of implementing NSF with this configuration is true?

Refer to the exhibit:

Which purpose of implementing NSF with this configuration is true?
A . The router uses NSF to load balance traffic between two links, with the primary link alternating every 90 seconds
B . The router uses NSF to reduce neighbor-relationship downtime during RP switchover
C . The router uses NSF to load balance traffic on a routed EtherChannel
D . The router uses NSF to handle RP switchover while allowing neighbor relationships to remain up

View Answer

Answer: D