Which statement about foreign keys is true?

Question

Options

• AA table can have only one foreign key.
• BForeign keys can only be defined when a table is created.
• CA foreign key can be defined on a column or a set of columns in a table.
• DForeign keys are enforced only during the execution of INSERT statements.

• A
  3% (1)
• B
  9% (3)
• C
  84% (27)
• D
  3% (1)

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