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': 'Tumour, most sensitive to radiotherapy: March 2011, March 2013 (b, h) \nSelect and explain. \nA. Yolk sac tumour, B. Embryonal cell tumour, C. Teratoma, D. Seminoma', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. D: Seminoma Highly radiosensitive tumours are 1) hodgkin's disease, 2) seminoma, 3) wilm's tumour and 4) medulloblastoma", 'role': 'assistant'}]