Welcome to your interview.
The question is on your right: NET Collections and Inheritance. 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.
Tell me about your experience with .NET, including what collections are, how inheritance works, and how you apply design patterns.