Which symbol denote derived attributes in ER Model?

ISRO Scientist/Engineer SC · May 2017 · Computer ScienceModified — slightly modified from the official paper; see the solution

Which symbol denote derived attributes in ER Model?

  1. A.

    Double ellipse

  2. B.

    Dashed ellipse

  3. C.

    Squared ellipse

  4. D.

    Ellipse with attribute name underlined

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