Refer to the exhibit.

Which statement about this debug output is true?

A.
It was generated by an access point when it received a join request message from
a LAN controller

B.
It was generated by a LAN controller when it responded to a join request from an
access point

C.
It was generated by an access point when it send a join reply message to a LAN
controller

D.
It was generated by a LAN controller when it generated a join request to an access
point