Welcome to your interview.
The question is on your right: Maintainable Code Design Practices. 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.
How do you ensure the code you write is maintainable by other engineers? Walk through the coding practices you use around abstraction, function design, testing, and documentation.