Click on the exhibit.
AS 65540 is using MPLS to provide BGP shortcuts for its iBGP routing.
Which routers must be configured with the "configure router bgp igp-shortcuts rsvp-te" command?
A . Routers R6, R1, R4 and R5.
B . Routers R1and R4.
C . Routers R1, R2, R3 and R4.
D . Routers R2 and R3.
Answer: B