latency-sensitive applications are not disrupted) between two access points that are managed by the

In an enterprise WLAN, what condition will prevent a dual-band HT client device from performing a
fast and seamless transition (i.e. latency-sensitive applications are not disrupted) between two
access points that are managed by the same WLAN controller?

A.
The current AP is using channel 1 and the new AP is using channel 40.

B.
The SSID of the current AP does not match the SSID of the new AP.

C.
The current AP supports only ERP and the new AP is HT capable.

D.
The access points are hiding the SSID in Beacons and Probe Response frames.