Two events \( \mathrm{A} \) and \( \mathrm{B} \) have probabilities 0.25 and 0.50 respectively. ...

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Two events \( \mathrm{A} \) and \( \mathrm{B} \) have probabilities 0.25 and 0.50 respectively. The probability that both \( \mathrm{A} \) and \( \mathrm{B} \) occur simultaneously is 0.14 . Then the probability that neither \( \mathrm{A} \) nor B occurs is
(a) 0.4
(b) 0.39
(c) 0.38
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