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

A. SISTER

If M is the grandmother of N and N is the son of O, what is O's relation to M?

D. CHILD

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 D is the mother of E and E is the father of F, what is D's relationship to F?

A. GRANDMOTHER

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

D. BROTHER-IN-LAW