Which set of rf characteristics is directly monitored by the core feature set products？（）A、interference，utilization，and rf diffractionB、clients，utilization，and multipath interferenceC、noise，interference，and coverage holesD、noise interference，and multipath interference
Which set of rf characteristics is directly monitored by the core feature set products？（）
- A、interference，utilization，and rf diffraction
- B、clients，utilization，and multipath interference
- C、noise，interference，and coverage holes
- D、noise interference，and multipath interference
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