The probabilities of happening of the events \( A \) and \( B \) are \( \frac{1}{4} \) and \( \f...

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The probabilities of happening of the events \( A \) and \( B \) are \( \frac{1}{4} \) and \( \frac{1}{2} \) respectively. If the probability of happening of \( A \) and \( B \) simultaneously is \( \frac{7}{50} \), then probability of neither \( A \) nor \( B \) happening, is equal to
(A) \( \frac{39}{100} \)
(B) \( \frac{1}{4} \)
(C) \( \frac{11}{100} \)
(D) None of these
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