D is the daughter of E and F is the son of E. How is F related to D?

A. BROTHER

If G is the uncle of H and H is the daughter of I, how is I related to G?

B. SISTER

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

A. C IS THE SISTER OF B

In the code, A × B means A is the mother of B, A ÷ B means A is the daughter of B, and A - B means A is the son of B. If D ÷ C - A = true, what is the relationship of D to A?

A. D IS A'S MOTHER

If A + B means A is the uncle of B, A - B means A is the aunt of B, and A × B means A is the cousin of B. What is the relationship of C if A + C - B = true?

B. C IS THE AUNT OF B