During a school event, students X, Y, Z, and W perform in the following order: X performs before Y but after Z. W performs after Y. What is the correct sequence of performances?

A. Z, X, Y, W

In a sales competition, Tom sold more than Jerry but less than Alice. Bob sold the least. Who sold the most?

C. ALICE

In a family of four members A, B, C, and D, A is a doctor and is married to B. C is their son and D is the daughter. What is B's profession?

D. NOT SPECIFIED

In a family, there are three siblings: X, Y, and Z. X is older than Y but younger than Z. If Y is 10 years old, how old is Z at least?

C. 12

In a family, the father is a banker, the mother is a nurse, and they have two children. If the son wants to become a banker like his father and the daughter wants to be a nurse like her mother, which profession is not chosen by either child?

C. TEACHER