Welcome to your interview.
The question is on your right: Normalization and Normal Forms. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
What is database normalization, and what are the differences between the first, second, and third normal forms?