Welcome to your interview.
The question is on your right: Stochastic Calculus for Derivatives. 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.
Walk through the fundamental principles of stochastic calculus and how it is utilized in pricing derivative instruments.