This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Orbit, Subject name: Ophthalmology
[{'content': 'The most common retrobulbar orbital mass in adults is: \nSelect and explain. \nA. Neurofibroma, B. Meningioma, C. Cavernous hemangioma, D. Schwannoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Cavernous hemangiomaRef: Kanski 7/e, p. 105Cavernous hemangioma occurs most commonly in adults with a female preponderance. Most frequently occur within the lateral part of the muscle cone just behind the globe.', 'role': 'assistant'}]