In a family, there are five members: P, Q, R, S, and T. P is the father of Q, R is the mother of Q, S is the sister of Q, and T is the brother of S. What is the correct order of the family members from oldest to youngest?
Answer: A. P, R, S, Q, T
P and R are the parents, followed by their children S, Q, and T in that order.