Your question is Investigating a Regional Signup Drop. 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).
Prime sign-ups dropped in one region - what is your plan to investigate?
Asked in the Loop: Case / Business Thinking stage. Given "for example" for the case round.
Use a practical, structured investigation plan and distinguish diagnostic evidence from assumptions.