In a family, there are three siblings: X, Y, and Z. X is a teacher, Y is a doctor, and Z is a lawyer. If Z is older than Y, who is the youngest sibling?

A. X

In a family of five members A, B, C, D, and E, A is a doctor, B is a teacher, C is a lawyer, D is A's sibling, and E is the spouse of C. Who is the teacher?

B. B

A family consists of a father, a mother, and three children. The father is a chef, the mother is a nurse, and one child is a musician. If the mother’s favorite color is purple and the musician’s favorite color is blue, who is the musician?

C. ONE OF THE CHILDREN

A family consists of a father, a mother, and three children: P, Q, and R. P is the eldest and is studying medicine, Q is studying law, and R is the youngest. If the mother is a lawyer, who is the father?

D. BUSINESSMAN

In a family, there are three children: X, Y, and Z. X is the brother of Y, and Y is the sister of Z. How is Z related to X?

A. BROTHER