When learning accept mode is set to auto, and the action is set to rotate, when is the KB created
and used?

A.
It is created every 24 hours and used for 24 hours.

B.
It is created every 24 hours, but the current KB is used.

C.
It is created every 1 hour and used for 24 hours.

D.
A KB is created only in manual mode.