What must be true about the client before upstream traffic stream metrics can be displayed on the Cisco WLC?
A.
must be Cisco Compatible Extensions version 2
B.
must be Cisco Compatible Extensions version 3
C.
must be Cisco Compatible Extensions version 4
D.
must be associated to a Platinum QoS WLAN
E.
must be associated to an access point on a Cisco WLC with code version 5.0 or newer