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': 'All are true about anaplastic carcinoma thyroid, except: \nSelect and explain. \nA. Local infiltration, B. Highly chemosensitive, C. Surgery is of limited value, D. Spread by lymphatic route', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anaplastic carcinoma: - Local infiltration is the notorious feature of this carcinoma. - Survival rarely exceeds 6 months. - There is no evidence to suppo chemotherapy in this cancer. - Radiotherapy is given. Ref: Bailey & Love, 25th Edition, Page 794.', 'role': 'assistant'}]