单项选择题WhenusingWMMCallAdmissionControl,whatarethedefaultbandwidthvaluesforvideoon802.11a n()?
A.Max RF bandwidth is 75 percent, reserved roaming bandwidth is 6 percent.
B.Max RF bandwidth is 50 percent, reserved roaming bandwidth is 10 percent.
C.Max RF bandwidth is 50 percent, reserved roaming bandwidth is 15 percent.
D.Max RF bandwidth is 0 percent, reserved roaming bandwidth is 0.