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': 'Which of the following conditions is characterized by cafe-au-lait spots, non-encapsulation and potential for malignant transformation: \nSelect and explain. \nA. Neurilemrnoma, B. Neurofibroma, C. Traumatic Neuroma, D. Solitary plasmocytoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]