You need to configure a new Company Catalyst 3560 switch for a VOIP-enabled office. Which three statements are true about the voice VLAN feature on this switch？（）
- AThe default CoS value for incoming traffic is set up to 0.
- BThe CoS value is trusted for 802.1p or 802.1q tagged traffic.
- CPortFast is automatically disabled when a voice VLAN is configured.
- DThe voice VLAN feature is disabled by default.
- EThe IP phone accepts the priority of all tagged and untagged traffic and sets the CoS value to 4.
- FWhen the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port