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

A. BROTHER

If M is the grandmother of N and O is the father of N, what is O to M?

A. SON

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

C. BROTHER-IN-LAW

If N is the daughter of O and O is the sister of P, what is N's relationship to P?

B. NIECE

If M is the daughter of N and N is the sister of O, what is M's relation to O?

A. NIECE