If J is the uncle of K and L is the sister of K, what is L to J?

A. NIECE

If M is the son of N and N is the mother of O, how is M related to O?

A. BROTHER

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

A. BROTHER

If J is the sister of K and L is the husband of J, how is L related to K?

A. BROTHER-IN-LAW

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

A. AUNT