Controllers WLC_1 and WLC_2 are in the same mobility group. A wireless client that does not have the same VLAN interface

[answerhappygod]

Controllers WLC_1 and WLC_2 are in the same mobility group. A wireless client that does not have the same VLAN interface roams from WLC_1 to WLC_2.
What happens to the client roaming?

A. The client context is deleted in controller WLC_1, and a new client context is created in WLC_2 to become the anchor controller.
B. The client context is moved from controller WLC_1 to controller WLC_2. The result is that the WLC_1 client context is deleted and WLC_2 becomes the anchor controller.
C. The client context is copied from controller WLC_1 to controller WLC_2. The result is that WLC_1 becomes the foreign controller and WLC_2 becomes the anchor controller.
D. The client context is copied from controller WLC_1 to controller WLC_2. The result is that WLC_1 becomes the anchor controller and WLC_2 becomes the foreign controller.