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: Ophthalmology
[{'content': 'The most common tumor that spread to orbit from intracranial cavity is \nSelect and explain. \nA. Gliomas, B. Pituitary tumors, C. Neurofibroma, D. Sphenoid wing meningioma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Sphenoid wing meningiomas are slow growing tumors that originate from outer arachnoid meningeal epithelial cells.', 'role': 'assistant'}]