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': 'Follicular carcinoma of thyroid is best treated by \nSelect and explain. \nA. Hemi thyroidectomy, B. Near total thyroidectomy, C. Sub total thyroidectomy, D. Radiotherapy alone', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]