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': 'Treatment of choice for Mixed Parotid Tumor is: \nSelect and explain. \nA. Enucleation, B. Superficial parotidectomy, C. Radical parotidectomy, D. Radiation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]