Your question is Prioritizing Through Ambiguous Requirements. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you were given a vague or shifting business problem and had to create clarity, align stakeholders, and decide what to prioritize first. What did you do, and what was the outcome?