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

D. SIBLING

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

D. SIBLING

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

A. BROTHER

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

A. GRANDFATHER

If M is the uncle of N, and N is the daughter of O, what is the relationship of O to M?

C. BROTHER-IN-LAW