Suppose X and Y are sets and |X| and |Y| are their respective cardinalities.…

1996

Suppose X and Y are sets and |X| and |Y| are their respective cardinalities. It is given that there are exactly 97 functions from X to Y. From this one can conclude that

  1. A.

    |X|=1,|Y|=97

  2. B.

    |X|=97,|Y|=1

  3. C.

    |X|=97,|Y|=97

  4. D.

    None of the above

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Correct answer: A

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