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: Surgery
[{'content': 'Symptoms of hyperthyroidism include \nSelect and explain. \nA. Intolerance to cold, B. Decreased appetite, C. Weight gain, D. Palpitations', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]