If X is the daughter of Y, and Y is the sister of Z, what is X's relation to Z?

A. NIECE

If M is the father of N, and N is married to O, what is O's relation to M?

A. SON-IN-LAW

If P is the grandmother of Q, and Q has a brother R, what is R's relation to P?

A. GRANDSON

If S is the uncle of T, and T is the daughter of U, how is S related to U?

B. BROTHER-IN-LAW

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

A. BROTHER