Option 10C is an implementation of Inter-AS MPLS VPN. Which two statements about Option 10C aretrue？（）

• A、Great scalability is offered
• B、Route Target Rewrite must be configured on ASBRs
• C、Multihop EBGP is utilized between route reflectors
• D、Multihop EBGP is utilized between ASBRs
• E、The ASBRs hold VPNv4 routes