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': 'Radioiodine is preferred for the treatment of \nSelect and explain. \nA. Young patient, B. Pregnancy, C. Recent onset of toxic goiter, D. Diffuse Toxic goiter in > 45 years old', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. (d) Diffuse toxic goiter in > 45 years old.Ref: Schwartz 10th edition, Page 1533Contraindications for RAI ablation in Graves' disease* Pregnancy* Lactation* Young (Children and adolescents)* Nodules in thyroid gland* Ophthalmopathy (Progression of Graves ophthalmopathy happens)", 'role': 'assistant'}]