You need to configure a new Cisco router to be installed in the Company VOIP network.  Which  three interface commands will configure the switch port to support a connected Cisco phone and  to trust the CoS values received on the port if CDP discovers that a Cisco phone is attached？ （）

• A、switchport voice vlan vlan-id
• B、mls qos trust device cisco-phone
• C、switchport priority extend cos_value
• D、mls qos trust cos
• E、mls qos trust override cos