Which of the following functional dependencies are satisfied by the instance?

GATE · Computer Science · 2000

Which of the following functional dependencies are satisfied by the instance?

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  1. A.

    XY → Z and Z → Y

  2. B.

    YZ → X and Y → Z

  3. C.

    YZ → X and X → Z

  4. D.

    XZ → Y and Y → X

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