A is father of X; B is mother of Y. The sister of X is Z and Y. Which of the following statements is definitely not true ?
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
Correct Answer: Y is the son of A
A is the father of X and Y is the sister of X. So, Y is the daughter of A.