This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which is not a neuronal tumor \nSelect and explain. \nA. Ependymoma, B. Neuroblastoma, C. Gangliocytoma, D. Ganglioglioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer Robbins page no 1306', 'role': 'assistant'}]