In a family of four members A, B, C, and D, A is a doctor, B is a teacher, C is A's sibling, and D is the parent of A and C. What is B's relationship to D?

A. CHILD

In a family, there are three siblings: X, Y, and Z. X is older than Y but younger than Z. If Z is a doctor and Y is a teacher, what is X's profession?

D. UNKNOWN

A family consists of a father, a mother, and two children. The father is a lawyer, the mother is a nurse, and one child is a student. If the other child is not a student, what could be the profession of the second child?

D. UNKNOWN

In a family, P is the father of Q, and Q is the mother of R. What is the relationship between P and R?

A. GRANDFATHER

A family has a grandmother, a mother, and two daughters. The grandmother is a retired teacher, the mother is a doctor, and one daughter is a student. If the other daughter is not in school, what is her possible role?

D. UNKNOWN