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

P is the uncle of Q. Q is the daughter of R. R is the sister of P. How is P related to R?

A. BROTHER

If A is the sister of B, and B is the mother of C, what is A's relation to C?

A. AUNT

A is the daughter of B. C is the son of B. What is the relation of C to A?

A. BROTHER

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

C. MOTHER