If A + B means A is the sister of B, B - C means B is the brother of C, and C * D means C is the mother of D, what is the relationship of A to D?

A. AUNT

If X - Y means X is the father of Y, Y + Z means Y is the brother of Z, and Z × W means Z is the sister of W, what is the relationship of W to X?

B. W IS THE DAUGHTER OF X

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 to D if C + D and D - C are true?

A. C IS D'S BROTHER

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?

C. C IS THE SON OF A

In the expression X + Y × Z - W, if X is the father of Y, Y is the brother of Z, and W is the sister of Y, what is the relationship of W to X?

A. W IS THE DAUGHTER OF X