If A is the sister of B and B is the mother of C, what is A's relation to C?

A. AUNT

If P is the son of Q and Q is the brother of R, what is P's relation to R?

A. NEPHEW

If K is the grandmother of L and L is the daughter of M, what is the relationship of M to K?

C. DAUGHTER-IN-LAW

In a coded relation, if M - N means M is the sister of N, M × N means M is the daughter of N, and M + N means M is the mother of N, what is the relationship of O if M - N + O?

B. O IS M'S DAUGHTER

If J is the son of K and L is the daughter of K, what is L to J?

A. SISTER