A family consists of four members: P, Q, R, and S. P is the father of Q, Q is the sister of R, and S is the mother of R. Who is the father of R?

A. P

In a family, M is the grandmother of N. N has two siblings: O and P. O is a doctor, and P is a lawyer. What is N's relationship to M?

A. GRANDCHILD

In a family, T is the son of U, and V is the daughter of U. W is the brother of U. What is the relationship between T and W?

B. NEPHEW

In a family, there are three siblings: A, B, and C. A is older than B, and B is older than C. If C is 10 years old, how old is A if the age difference between each sibling is 2 years?

B. 14

In a family of four members A, B, C, and D, A is a doctor, B is a teacher, C is a lawyer, and D is a nurse. If A is married to B and they have two children, who is the lawyer?

C. C