A: have a trail with the Apply trail to all regions option enabled. C: have multiple single region trails. E: Log files from all the regions can be delivered to a single S3 bucket. Global service events arealways delivered to trails that have the Apply trail to all regions option enabled. Events are deliveredfrom a single region to the bucket for the trail. This setting cannot be changed. If you have a singleregion trail, you should enable the Include global services option. If you have multiple single regiontrails, you should enable the Include global services option in only one of the trails. D: Incorrect. Once enabled it is applicable for all the supported services, service can't be selected.