Which three statements correctly describe a route target (RT)? (Choose three.)

A.
An RT is an extended BGP community.

B.
An RT is a 64-bit prefix prepended to a IPv4 address enabling different customers to share the same IP address pool.

C.
An RT is attached to IPv4 routing updates for indication of MPLS VPN membership.

D.
Multiple RTs can be attached to a single VPNv4 BGP routing update.

E.
Each VRF on a PE router can have multiple import RTs configured.

F.
Export RTs are manually configured on the CE routers.