If A ÷ B means A is the sister of B, A * B means A is the father of B, and A + B means A is the mother of B, what is the relationship of C if A * C ÷ B?

C. C IS A'S SON

P is the uncle of Q. Q is the daughter of R. If R is P's brother, how is R related to Q?

A. FATHER

If N is the father of O and P is the son of O, what is the relationship of N to P?

A. GRANDFATHER

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 + C - B?

B. C IS THE BROTHER OF B

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 cousin of N, what is the relationship of O if M + O - N?

D. O IS THE SISTER OF N