1) A is the father of X; B is the mother of Y. The sister of X and Z is Y. Which of the following statements is definitely not true? A) B is 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: Option CExplanation:A is the father of X and Y is the sister of X. So, Y is the daughter of A.