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

B. BROTHER

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

C. BROTHER-IN-LAW

If K is the grandmother of L and L is the daughter of M, what is the relationship of M to K?

C. DAUGHTER-IN-LAW

If N is the sister of O and O is the father of P, what is the relationship of P to N?

D. NEPHEW

If A is the brother of B, and B is the sister of C, what is the relationship of A to C?

A. BROTHER