What could be the cause of the problem that the users reported?

Refer to the exhibit.

Help desk staff receive reports from users that there is inefficient wireless service in a location serviced by AP20, AP21, and AP22, and open a ticket. A few hours later, the users report that there is a drastic improvement in service. The staff still wants to determine the cause of the problem so the next day thay start monitoring the tasks.
They access the Mobility Master (MM), and obtain the output shown in the exhibit.
What could be the cause of the problem that the users reported?
A. AirMatch was running an initial incremental optimization.
B. An operator used AirMatch to manually freeze AP channel and power.
C. An operator manually assigned settings in the radio profile.
D. AirMatch was running a full on-demand optimization.

Download Printable PDF. VALID exam to help you PASS.