What is the Cisco recommendation for VLAN configuration as it relates to QoS for VoWLAN configuration?

A.
A dedicated VLAN should be defined to allow for QoS trust boundary extension to voice devices without having to extend it to data devices.

B.
The VLAN should be the same as the data device so that QoS can be consistently managed because it is handled on a per-WLAN basis, and also to enable PC-based softphone applications.

C.
There is no specific Cisco recommendation because QoS configuration is not impacted by the choice of SSID.

D.
A dedicated VLAN should be defined if Cisco Unified Wireless Network central switching is used. For H-REAP local switching, only the native VLAN should be used for ease of deployment.