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': 'Proptosis is seen in – a) Neuroblastoma  b) Meningioma  c) Sympathetic ophthalmia  d) Injuries \nSelect and explain. \nA. abd, B. abc, C. bcd, D. bde', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Neuroblastoma and optic nerve sheath meningioma can cause proptosis.\nTraumatic hiatus can cause transmission of cerebral pulsation and pulsatile proptosis.', 'role': 'assistant'}]