For any two independent events ${E_1}$ and ${E_2},$ $P\,\{ ({E_1} \cup {E_2}) \cap ({\bar E_1} \cap {\bar E_2})\} $ is

  • [IIT 1991]
  • A

    $ < \frac{1}{4}$

  • B

    $ > \frac{1}{4}$

  • C

    $ \ge \frac{1}{2}$

  • D

    None of these

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