Welcome to your interview.
The question is on your right: Explain Complex Products Simply. 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 are on a customer call and the product you sell is clearly technical, but the person across the table is not. They care about business impact, not features or jargon.
How would you explain a complex product to a non-technical customer?