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    Question

    What is a foreign key in a relational

    database?
    A A column that uniquely identifies each row in a table Correct Answer Incorrect Answer
    B A column that is used for sorting data in a table Correct Answer Incorrect Answer
    C A column that references a primary key in another table Correct Answer Incorrect Answer
    D A column that is used for indexing data in a table Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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