Which information element will the client use if the client intends to use a different PHY rate than the nominal PHY rate advertised?（）

A.Wireless client WMM UP classification is translated to a wired DSCP priority.
B.Wireless client 802.11p classification is translated to a wired DSCP priority.
C.Wireless client WMM UP classification is translated to a wired 802.1p CoS priority.
D.Wireless client 802.11p classification is translated to a wired 802.1p CoS priority.

A.Packet loss is less than one percent.
B.Signal strength at cell edge is approximately -67 dBm.
C.End-to-end delay is less than 200 ms.
D.Cell overlap between APs is 50 percent.

A.the codec used by the calling phone
B.approximate length of the call in minutes
C.MOS values throughout the duration of the call
D.802.11e access category overruns
E.co-channel interference percentage during the call