In a family, there are four members: P, Q, R, and S. P is the son of Q, and R is the daughter of Q. If S is the brother of P, what is the relationship of S to R?

A. BROTHER

In a family, there are three children: X, Y, and Z. X is the oldest and is a painter. Y is a musician and is younger than X but older than Z. What is Z's profession?

C. UNKNOWN

In a family of six members A, B, C, D, E, and F, A is the father of B. C is the mother of B and D. E is the sister of B. F is the brother of D. How is E related to F?

A. SISTER

In a family of four members A, B, C, and D, A is a doctor and is married to B. C is their child and is a student. D is B's brother. What is D's profession?

C. UNKNOWN

In a family of five members A, B, C, D, and E, A is the father of B. C is the mother of B and D is the brother of B. E is the sister of D. How is E related to A?

A. DAUGHTER