When using UTM features in an HA cluster, which statement is true for installing the licenses on the cluster members?（）

• A、One UTM cluster license will activate UTM features on both members.
• B、Each device will need a UTM license generated for its serial number.
• C、Each device will need a UTM license generated for the cluster, but licenses can be applied to either member.
• D、HA clustering automatically comes with UTM licensing, no additional actions are needed.