An enterprise is using two wireless controllers to support the wireless network. The data center is located in the head office. Each controller has a corporateWLAN configured with the name Copr-NET392267230WLC-1 and Corp-NET68371638WLC-2. The APs are installed using a round-robin approach to load balance the traffic. What should be changed on the cofiguration to optimize roaming?

A. Use the same WLAN name for the corporate network on both controllers. B. Move all access points to one controller and use the other as N+1 HA. C. Move the controllers to an external data center with higher internet speeds. D. Place the access points per floor on the same controller.