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': 'Pleomorphic adenomas arising from the minor salivary glands can be treated with \nSelect and explain. \nA. Local excision with 2mm margin, B. Local excision with 5mm margin, C. Radiotherapy, D. Chemotherapy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]