Which three elements must be used when you configure a router interface for vlan trunking？（）

• A、one IP network or subnetwork for each subinterface
• B、subinterface numbering that matches vlan tages
• C、subinterface encapsulation identifiers that match vlan tags
• D、a management domain for each subinterface
• E、one physical interface for each subinterface
• F、one subinterface per vlan