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?

A. C IS THE SISTER OF B

If P + Q means P is the sister of Q, P - R means P is the mother of R, and R × S means R is the son of S, what is the relationship of Q to S in the expression P + Q - R × S?

D. Q IS S'S NIECE

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 mother of B, what is the relationship of C if A + B × C?

B. C IS A'S DAUGHTER

In a coded relation, if P ÷ Q means P is the father of Q, P - Q means P is the daughter of Q, and P + Q means P is the son of Q, what is the relationship of R if P ÷ Q + R?

C. R IS Q'S SON

In a coded relation, if M + N means M is the aunt of N, M - N means M is the uncle of N, and M × N means M is the grandmother of N, what is the relationship of O if M + N × O?

C. O IS N'S GRANDDAUGHTER