In an infrastructure Basic Service Set (BSS), how does the passive scanning process occur?

A.
Access points broadcast Beacons on all channels of each radio within the regulatory domain.
Nearby client stations record information found in the Beacons for use in the association process.

B.
Client stations broadcast Probe Request frames on all supported channels in the regulatory
domain. Nearby access points respond with Probe Response frames. Client stations record
information in the Probe Response frames for use in the association process.

C.
Client stations broadcast Probe Request frames on the single channel for which they are
programmed. Nearby access points respond on that channel with Probe Response frames.
Clientstations record information found in the Probe Response frames for use in the association
process.

D.
Access points broadcast Beacons on a single channel for which it is programmed. Nearby client
stations listen for Beacon frames and record information found in the Beacons for use in the
association process.