Your question is Handling Architectural Stakeholder Conflict. 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 a key stakeholder strongly disagreed with your architectural proposal. How did you work through the disagreement, what trade-offs did you discuss, and what was the outcome?