A man and his wife appear in an interview. The probability of husband‘s selection is 1/7 and the probability of wife‘s selection is 1/5. What is the probability that only one of them is selected?
A. \(\frac {2} {7}\) B \(\frac {1} {25}\). C \(\frac {1} {3}\). D \(\frac {1}{35}\) E \(\frac {1} {49}\)