Which configuration will enable the R1 router in the AS51003 sub-AS (member-AS) as a route reflector with neighbors 10.1.1.1 and 10.2.2.2 as its route-reflector clients?
A.
! R1
router bgp 51003
bgp confederation identifier 55111
bgp confederation peers 51001 51002
neighbor 10.1.1.1 remote-as 51003
neighbor 10.2.2.2 remote-as 51003
neighbor 10.1.1.1 route-reflector-client
neighbor 10.2.2.2 route-reflector-client
B.
! R1
router bgp 51003
bgp confederation identifier 55111
bgp confederation peers 51001 51002
neighbor 10.1.1.1 remote-as 51001
neighbor 10.2.2.2 remote-as 51002
neighbor 10.1.1.1 route-reflector-client
neighbor 10.2.2.2 route-reflector-client
C.
! R1
router bgp 55111
bgp confederation identifier 51003
neighbor 10.1.1.1 remote-as 51003
neighbor 10.2.2.2 remote-as 51003
neighbor 10.1.1.1 route-reflector-client
neighbor 10.2.2.2 route-reflector-client
D.
! R1
router bgp 55111
bgp confederation identifier 51003
neighbor 10.1.1.1 remote-as 55111
neighbor 10.2.2.2 remote-as 55111
neighbor 10.1.1.1 route-reflector-client
neighbor 10.2.2.2 route-reflector-client