If J is the father of K and K is the daughter of L, what is the relationship between J and L?

A. HUSBAND AND WIFE

D is the daughter of E, and F is the son of E. What is F to D?

A. BROTHER

M is the grandmother of N, and N is the son of O. What is O to M?

B. SON

If D is the daughter of E, and E is the mother of F, what is the relationship of D to F?

A. SISTER

If A is the brother of B, and B is the sister of C, how is A related to C?

A. BROTHER