Welcome to your interview.
The question is on your right: Refactoring Recursive Tree Endpoints. 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.
Look at the tree-structured CRUD application you built for your take-home assignment. How would you refactor this endpoint to handle recursive parent-child relationships more efficiently?