Welcome to your interview.
The question is on your right: White-Box vs Black-Box Testing. 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 test strategy for a new engineering initiative and want to explain when different testing approaches are appropriate during execution.
Can you explain the difference between white-box testing and black-box testing, and how you would decide when to use each?