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Discussion :: Database System 2 - CS

  1. An abstract class is which of the following?

  2. A.

     A class that has direct instances, but whose descendants may have direct instances.

    B.

     A class that has no direct instances, but whose descendants may have direct instances.

    C.

     A class that has direct instances, but whose descendants may not have direct instances.

    D.

     A class that has no direct instances, but whose descendants may not have direct instances

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    Answer : Option B

    Explanation :

    Explanation Not Provided


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