In a test, an examinee either guesses or copies or knows the answer to a multiple choice question with four choices. The probability that he makes a guess is \[\frac{1}{3}.\]The probability that he copies is \[\frac{1}{6}\] and the probability that his answer is correct given that he copied it is \[\frac{1}{8}.\] The probability that he knew the answer to the question given that he correctly answered it, is

In a test, an examinee either guesses or copies or knows the answer to

1.	In a test, an examinee either guesses or copies or knows the answer to a multiple choice question with four choices. The probability that he makes a guess is \[\frac{1}{3}.\]The probability that he copies is \[\frac{1}{6}\] and the probability that his answer is correct given that he copied it is \[\frac{1}{8}.\] The probability that he knew the answer to the question given that he correctly answered it, is
A.	\[\frac{24}{29}\]
B.	\[\frac{1}{4}\]
C.	\[\frac{3}{4}\]
D.	\[\frac{1}{2}\]
Answer» B. \[\frac{1}{4}\]

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