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': 'Mantle irradiation is used in: \nSelect and explain. \nA. Leukaemia, B. Hodgkins disease, C. Chest recondaries from some cancers, D. Neuroblastoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Hodgkins disease', 'role': 'assistant'}]