Which three WLC actions are required to properly enable queuing with TSPEC for voice traffic?

Which three WLC actions are required to properly enable queuing with TSPEC for voice traffic? (Choose three.)
A. configure WLAN setting to enable WMM
B. configure WLAN Aironet information elements to enabled
C. configure global 802.11b/g or 802.11a, or both, to voice CAC
D. configure WLAN platinum QoS
E. configure DTIM = 2
Explanation/Reference:
[/showhide]