If P × Q means P is the mother of Q, and Q + R means Q is the brother of R, what is the relationship between P and R?

B. MOTHER

In a coded relation, 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

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 father of B, what is the relationship of C if A × C - B?

B. C IS THE DAUGHTER OF A

If M - N means M is the father of N, and N + O means N is the brother of O, what is the relationship between M and O?

B. UNCLE

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

A. BROTHER