Refer to the exhibit.   Which three statements are true about the voice VLAN configuration of the Catalyst switch？ （）

• A、The packet priority received from a device that is connected to the phone will be unmodified.
• B、The packet priority received from a device that is connected to the phone will be overridden.
• C、Incoming CoS values in packets from the connected phone will be left unmodified.
• D、Packets without aCoS value that is set by the phone will be set to a value of 5.
• E、Incoming CoS values in packets from the connected phone will be reset to a value of 5.
• F、Packets without aCoS value that is set by the phone will be set to the default CoS value.