This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'Polyuria \nSelect and explain. \nA. Rhinorrhea, B. Rhinorrhea, C. Yawning, D. Insomnia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Polyuria', 'role': 'assistant'}]