Let R = (A, B, C, D, E, F) be a relation scheme with the following…

PYQ RPSC Programmer 2013

Let R = (A, B, C, D, E, F) be a relation scheme with the following dependencies :

C → F, E → A, EC → D, A → B

Which of the following is a key for R?

  1. A.

    CD

  2. B.

    EC

  3. C.

    AE

  4. D.

    AC

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