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': 'The most radiosensitive tumor among the following is: \nSelect and explain. \nA. Bronchogenic carcinoma, B. Carcinoma parotid, C. Dysgerminoma, D. Osteogenic sarcoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Dysgerminoma', 'role': 'assistant'}]