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 common radiation induced cancer: \nSelect and explain. \nA. Thyroid Carcinoma, B. Breast Carcinoma, C. Leukemia, D. Sarcomas', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Leukemia is most common radiation induced cancer.\nOthers: Thyroid, Breast Carcinoma', 'role': 'assistant'}]