Welcome to your interview.
The question is on your right: Balancing Velocity and Stability. 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 balance the need for new feature velocity with the necessity of system stability?