There are six members A, B, C, D, E, F in the family of three generations. There are couples in each generation of the family. How is A related to E? Statement I: B is mother in law of D, who is not married to
C. B is not married to F. Statement II: E is the wife of C’s father. A is not the father of D, who is not in 1st generation.

From statement I alone, B is mother in law of D, who is not married to C. B is not married to F. So, the relation between A and E is not defined. So, statement I alone is not sufficient to answer the question. From statement II alone, Now, E is the wife of C’s father. A is not the father of D, who is not in 1st generation. So, the relation between A and E is not defined. So, statement II alone is not sufficient to answer the question. By combining statements, I and II together, we cannot determine the relation between A and E.