What is the reason for this behavior assuming all settings are at defaults? Select the best response

A user walks from one building to another where each building has a Cisco WLC 4402 and 50 APs. However, the user does not get a new IP address from the second building’s subnet. What is the reason for this behavior assuming all settings are at defaults? Select the best response.

A.
User’s DHCP release/renew interval has not timed-out yet.

B.
Symmetric mobility tunneling is not enabled.

C.
User idle-timeout has not expired yet, so this is considered as a roam.

D.
User idle-timeout has expired, so this is considered as a roam.