An engineer is designing a multi cluster bgp network, each cluster has 2 RRs and 4 RR clients which 2 options must be considered?

A.
Clients from all clusters should peer with all RRs

B.
All route reflectors should be non client peers & topology partially meshed

C.
All RRs must be non client peers in a fully meshed topology

D.
Clients must not peer with IBGP speakers outside the client router

E.
Clients should peer with at least one other client outside it’s cluster