This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nuclear medicine, Subject name: Radiology
[{'content': "Thyrotoxicosis patients with least radio iodide uptake seen in: \nSelect and explain. \nA. Toxic adenoma, B. Grave's disease, C. MNG, D. Sub - acute thyroiditis", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Sub-acute thyroiditis or de Quervain thyroiditis is an uncommon condition, yet is considered the most common cause of painful thyroiditis. Disease is thought to have a viral origin, Has the least radioactive iodine uptake. RAIU in other diseases:', 'role': 'assistant'}]