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': 'Intracranial tumor extending to orbit mostcommonly ? \nSelect and explain. \nA. Glioma, B. Meningioma, C. Medulloblastoma, D. Craniopharyngioma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Meningioma Meningiomas are the most common intracranial tumor to extend to the orbit" Ophthalmic oncology Meningiomas commonly arise from the dura of sphenoid wing, i.e. sphenoid wing meningioma', 'role': 'assistant'}]