Welcome to your interview.
The question is on your right: Differentiate UI and UX. 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.
You're discussing product design with a cross-functional team, and people are using UI and UX interchangeably. You want to clarify the distinction in a way that is practical for product and design work.
Can you explain the difference between UI and UX?