If X * Y means X is the daughter of Y, X + Y means X is the son of Y, and X - Y means X is the uncle of Y, what is the relationship of Z if X * Y + Z?

B. Z IS X'S SON

If G is the uncle of H and H is the daughter of J, what is G to J?

B. BROTHER-IN-LAW

K is the mother of L, and M is the sister of K. What is M to L?

A. AUNT

N is the father of O, and P is the daughter of O. What is N to P?

B. FATHER

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

A. BROTHER