Which of the following best describes a composite key?

Question

Options

• AA composite key is a primary key that consists of the first two attributes of a relation.
• BA composite key is a primary or foreign key defined by its parent keys.
• CA composite key is a foreign key that consists of the same attributes as the primary key from a
• DA composite key is a primary or foreign key that consists of two or more attributes of a relation.

• A
  6% (3)
• B
  15% (8)
• C
  4% (2)
• D
  75% (40)

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