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: Pathology
[{'content': 'Pseudoarthrosis of Tibia is classical feature of? \nSelect and explain. \nA. Sturge Weber syndrome, B. Neurofibromatosis type 1, C. Neurofibromatosis type 2, D. Tuberous sclerosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pseudoarthrosis of Tibia and scoliosis are classicle feature of NF 1.', 'role': 'assistant'}]