Identify the differences of option 10A， as opposed to option 10C， for interAS vpn offerings. For option 10A（）.
- AGreater scalability is offered
- BThe ASBR holds VPNv4 routes
- CRelative technical simplicity is offered
- DLower relative security is offered
- EMultihop E-BGP between ASBRs is utilized
- FBetter suitability for InterProvider VPNs is provided