With the BGP peerings shown, which 3 solutions are most correct? (Choose three.)

A.
rtrA and rtrD are route-reflector-clients; rtrB and rtrC are route reflectors part of the same
cluster.

B.
rtrA and rtrD are route-reflector-clients; rtrB and rtrC are route reflectors part of the different
cluster.

C.
rtrA, rtrB and rtrC are part of a confederation sub-AS and rtrD is part of a different confederation
sub-AS

D.
rtrA, rtrB are part of one confederation sub-AS and rtrC, rtrD are part of a different
confederation sub-AS

E.
rtrA, rtrB and rtrC are part of a confederation sub-AS where rtrB is a route reflector and rtrA,
rtrC are routereflector-clients.