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: Radiology
[{'content': 'Hot nodule is seen in: \nSelect and explain. \nA. Adenolymphoma, B. Mixed parotid, C. Adenocystic carcinoma, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Adenolymphoma', 'role': 'assistant'}]