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

A. GRANDMOTHER

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

D. BROTHER-IN-LAW

If K is the sister of L and L is the father of M, how is K related to M?

A. AUNT

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

B. NIECE

If A + B means A is the sister of B, A - B means A is the brother of B, and A × B means A is the mother of B, what is the relationship of C if A + B × C?

A. C IS A'S DAUGHTER