What is a requirement when configuring or removing LAG on a WLC?

What is a requirement when configuring or removing LAG on a WLC?

A. The incoming and outgoing ports for traffic flow must be specified if LAG is enabled. B. The management interface must be reassigned if LAG is disabled C. The controller must be rebooted after enabling or reconfiguring LAG D. Multiple untagged interfaces on the same port must be supported