Which configuration task requires configuring the bgp cluster-id {cluster-id} command?

A.
Configuring the member ASs within a BGP confederation.

B.
Configuring the BGP confederation ID.

C.
Configuring hierarchical BGP confederations.

D.
Configuring redundant BGP confederations.

E.
Configuring hierarchical route reflectors.

F.
Configuring redundant route reflectors.