Which statements regarding an IEEE 802.11 Channel Switch Announcement frame are true? (Choose 2)

A.
Channel Switch Announcement frames use the Action frame body format.

B.
Channel Switch Announcement frames are the only place where the Channel Switch Announcement
element is found.

C.
Channel Switch Announcement frames are transmitted and retransmitted on a channel until all
associated STAs successfully move to the new channel.

D.
Channel Switch Announcement elements may be carried in Beacon management frames.

E.
In an infrastructure BSS, Channel Switch Announcement frames may be transmitted by either the AP or
an associated STA.