This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors of Nervous System, Subject name: Medicine
[{'content': 'Which is shown below? \nSelect and explain. \nA. Proteus syndrome, B. Plexiform neurofibromatosis, C. Rhabdomyosarcoma, D. Malignant fibrous histiocy tosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Plexiform neurofibromatosis.Image source - style="font-family: Times New Roman, Times, serif">', 'role': 'assistant'}]