Use the following figure to answer the questions that follow. (4 pts) Teenager Owns 1..* Portable Audio Device {Abstract} MP3 Player CD Player S a. How many portable audio devices does each teenager own? b. Can there be a portable audio device not owned by any teenager? c. Can there be an MP3 player not owned by any teenager? d. Can there be an MP3 player owned by many teenagers?
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.* which means that each teenager can own one or more portable audio devices. Show more…
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