What is the function of Station Handoff Assist, if enabled?

What is the function of Station Handoff Assist, if enabled?
A . Force device to 5Ghz band
B . Force device off AP if RSSI is below threshold
C . Send message to device to change AP
D . Send message to adjoining AP to accept device
E . Send message to adjoining AP to initiate association to the device

View Answer

Answer: B