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: Radiology
[{'content': 'Most suitable radioisotope of Iodine for treating hypehyroidism is: \nSelect and explain. \nA. V", B. 1125, C. I131, D. 1132', 'role': 'user'}, {'content': 'Answer: C \nExplanation: I131', 'role': 'assistant'}]