This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid Gland, Subject name: Surgery
[{'content': "Definitive treatment of Grave's thyrotoxicosis: \nSelect and explain. \nA. Carbimazole, B. Steroids, C. Hemithyroidectomy, D. Radioiodine", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) RadioiodineRef: Schwartz 10th edition, Page 1534* RAI ablation with I-131 is the best method to manage Thyrotoxicosis due to Graves disease except in children and pregnant women', 'role': 'assistant'}]