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': 'Thyroid radioiodine ablation therapy is useful in all except \nSelect and explain. \nA. Residual papillary carcinoma, B. Anaplastic carcinoma, C. Follicular carcinoma, D. Medullary carcinoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]