Refer to the exhibit. Router R1 is reporting that its BGP neighbor adjacency to router R2 is down, but its state is Active. Which configuration must be applied to routers R1 and R2 to fix the problem?
A. R1
router bgp 5400
neighbor 11.11.11.11 remote-as 5400
neighbor 11.11.11.11 update-source Loopback0
R2
router bgp 5400
neighbor 11.11.11.12 remote-as 5400
neighbor 11.11.11.12 update-source Loopback0
B. R1
router bgp 5400
neighbor 2.2.2.2 remote-as 5400
neighbor 2.2.2.2 update-source Loopback0
R2
router bgp 5400
neighbor 1.1.1.1 remote-as 5400
neighbor 1.1.1.1 update-source Loopback0
C. R1
router bgp 5400
neighbor 2.2.2.2 remote-as 5400
R2
router bgp 5400
neighbor 1.1.1.1 remote-as 5400
D. R1
router bgp 5400
neighbor 1.1.1.1 remote-as 5400
neighbor 1.1.1.1 update-source Loopback0
R2
router bgp 5400
neighbor 2.2.2.2 remote-as 5400
neighbor 2.2.2.2 update-source Loopback0
