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When mapping a regular entity into a relation which of the following is true?

  • A.One relation is created.
  • B.Two relations are created.
  • C.Three relations are created.
  • D.Four relations are created.

Answer: A

Correct answer: One relation is created.

A regular entity maps directly to a single relation: its identifier becomes the primary key and its simple attributes become columns. Composite attributes contribute their components, and multivalued attributes are the exception, requiring a relation of their own.

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