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 M is the grandmother of N, and N is the son of O, what is the relationship of O to M?

B. SON

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

B. BROTHER-IN-LAW

If P is the uncle of Q and Q is the daughter of R, what is R's relation to P?

C. BROTHER-IN-LAW

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

A. SISTER