Refer to the exhibit. Which statement about this debug output is true?
A. It was generated by a LAN controller when it responded to a join request from an access point
B. It was generated by a LAN controller when it generated a join request to an access point
C. It was generated by an access point when it sent a join reply message to a LAN controller
D. It was generated by an access point when it received a join request message from a LAN controller
