A is father of X; B is mother of Y. The sister of X and Z is Y.
Which of the following statements is definitely not true ?
Option:
A. B is the mother of Z.
B. X is the sister of Z.
C. Y is the son of A.
D. B has one daughter.
E. B is the wife of A.
Answer: C . Y is the son of A.
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Justification:
A is the father of X and Y is the sister of X. So, Y is the daughter of A.
