If M is the grandmother of N and O is the father of N, what is O to M?

A. SON

If D is the daughter of E and E is the sister of F, what is the relationship of D to F?

A. NIECE

If D is the daughter of E, and E is the mother of F, what is the relationship of F to D?

A. BROTHER

If G is the son of H, and H is the sister of I, what is the relationship of I to G?

A. AUNT

If X is the daughter of Y and Y is the sister of Z, what is the relationship of X to Z?

A. NIECE