Welcome to your interview.
The question is on your right: Fibonacci Implementations and Complexity. 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.
Code Fibonacci and explain different ways to implement it, including the time and space complexity of each approach.