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: Medicine
[{'content': 'Whole body radiation is indicated in –  a) Advanced head & neck tumours  b) BM transplantation  c) Medulloblastoma  d) Mycosis fungoides  e) Histiocytosis-x \nSelect and explain. \nA. ab, B. bd, C. ac, D. dc', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]