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 uncle of H and H is the daughter of J, what is the relationship of J to G?

C. BROTHER-IN-LAW

If K is the son of L and M is the sister of L, what is the relationship of M to K?

A. AUNT

If N is the daughter of O and P is the son of O, what is the relationship of N to P?

A. SISTER