Refer to the exhibit. Which statement is true about a voice VLAN？（）

A.Physically the voice network and the data network are separate.

B.The voice traffic will normally be on a different IP subnet than will the data traffic.

C.End user intervention is necessary to place the phone into the proper VLAN.

D.The same security policy should be implemented for both voice and data traffic.

E.The data VLAN must be configured as the native VLAN.