Refer to the exhibit.
Which statement about the join process of the access point is true?
A . The time on the controller is outside of the certificates validity time interval, so the join phase failed.
B . The AP successfully joined the controller.
C . The AP moved from this controller to its primary controller.
D . The AP failed to join because the MAC address of the AP was not correct on the controller.
E . The controller rejected all discovery requests from the AP because they were not received on the management interface subnet.
Answer: D