Which element needs to be implemented to make this feature function effectively?

Refer to the exhibit.

A network operators configuring BGP PIC on CE1 on already established neighborships with PE1ana PE2 inside the fully converged MPLS network.

Which element needs to be implemented to make this feature function effectively?
A . Bidirectional Forwarding Detection must be applied to the upstream facing BGP interfaces.
B . The operator must ensure that all prefixes have the same next-hop from PE1 and PE2 for BGP PICA reserved BGP
C . community of 1 10 must be used to denote the PIC feature set to the routing protocol
D . BGP import export policies must be applied on all devices for the routes needing BGP for PIC

View Answer

Answer: A