This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': "Decreased Radio iodine uptake is/are seen in - \nSelect and explain. \nA. Toxic multinodular goiter, B. Grave's disease, C. Subacute thyroiditis, D. Autonomous nodular goitre", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is option 3- subacute thyroiditis High RAIU is seen in :- graves disease, toxic nodule, autonomous nodular goitre, metastatic follicular thyroid carcinoma, hcg dependent hypehyroidism of trophoblastic disease. Low RAIU is seen in :- subacute thyroiditis, lymphocytic thyroiditis, postpaum thyroiditis, exogenous hypehyroidism. Ref - Harrisons internal medicine 20e topic thyroid from p2692', 'role': 'assistant'}]