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A car table could use the VIN and the make together as a:

ACalendar key
BCabinet key
CCaption key
DCandidate key
Answer & Solution
Correct answer: D. Candidate key
1. The pair identifies each car uniquely. 2. Neither column can be dropped. 3. So it is a candidate key. _Source: OpenStax Introduction to Computer Science, Chapter 8, Data Management._
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