Which statements are true regarding the L3VPN configurations?
- A Prior to configuring a vrf within MP-BGP, the router has to have instantiated the VPNv4 or VPNv6 address-family.
- B On a single PE router, the Route Distinguisher and the Route Targets must be the same.
- C Prior to configuring a neighbor in the VPNv4 address-family, it must already be configured for IPv4-Unicast.
- D The import and export Route Targets must be the same on a PE.