Welcome to your interview.
The question is on your right: Attribution Modeling Approach. 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.
What is your approach to attribution modeling, and how do you determine which channel gets credit for a conversion at Staples India?