Which of the following statements about the UML Class Diagram below are correct?  (UMLClassDiagram.jpg (attached)) Check all that apply. A. a video must have at least one narrator B. all narrators are required to narrate videos C. the video on "Tactical Cat Breeding" has four narrators D. no video has more than two narrator every E. video is narrated F. some videos may not have any narrators

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