What phrase correctly completes the following sentence?

Alternates between awake and dozing, depending on its need to transmit and receive information

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 again