What phrase correctly completes the following sentence?
When using WMM Power Save operation, a wireless client device ______________.
Alternates between awake and dozing, depending on its need to transmit and receive
Enters a low-power radio state until it receives a WMM PS-Poll frame from the AP
Experiences higher throughput and lower latency than when operating in Active mode
Powers down a subset of MIMO radio chains and transmits information at a slower data rate
Buffers frames destined to the low-power AP until the AP wakes its radio and begins beaconing