A Choice is a set of resources. The client application can decide what resource to choose either trough an automated algorithm that should make use of the information present in the Annotation to do so, or present a list and require the user to make the decision. The Choice should have a default option.
Example Use Case: Gaelle annotates a frame that is published in multiple Metadata Storages, however the representations are identical. One copy is in her studio based Metadata Storage, the other in her institutional Metadata Storage. She wishes to explicitly link both of the Targets to ensure her annotation can be presented along with at least one copy of the frame from the most convenient location to the Annotation Consumer.