What is a reason for this?

An engineer recently removed a WLC from a WCS, but the APs associated to the WLC are still
showing on the WCS. What is a reason for this?

A.
The associated APs must be removed manually.

B.
The APs must be removed from the WCS map.

C.
The hold-down timer must expire before the APs will be removed.

D.
The APs must be audited.