This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'The most common retrobulbar mass in adults is \nSelect and explain. \nA. Neurofibroma, B. Meningioma, C. Cavernous hemangioma, D. Schwannoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cavernous hemangioma is a non encapsulated seen most commonly inside the muscle cone. Refer khurana 6/e p 411', 'role': 'assistant'}]