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: Medicine
[{'content': "Decreased Radio iodine uptake is I are seen in \nSelect and explain. \nA. Toxic multinodular goiter, B. Grave's disease, C. Subacute thyroiditis, D. All", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Subacute thyroiditis) Mayo Clinic Internal Medicine Concise Textbook (2007)/181: Harrison 18th/p 2917 Subacute Thyroiditis and Facititious thyroiditis are associated with decreased radioiodine uptake.', 'role': 'assistant'}]