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

If M is the sister of N and N is the brother of O, how is M related to O?

A. SISTER

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

C. MOTHER

If J is the brother of K and K is the father of L, what is J's relation to L?

B. UNCLE