This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular trauma , Subject name: Ophthalmology
[{'content': 'Blow out fracture of the floor of the orbit. True is- \nSelect and explain. \nA. Waters view is recommended, B. Proptosis is seen, C. Epistaxis is never seen, D. Double density sign is seen', 'role': 'user'}, {'content': "Answer: A \nExplanation: *Water's view is best. There is enophthalmos (not proptosis). Ipsilateral epistaxis is present. There is tear drop sign. Ref: Khurana 7th/e p.440", 'role': 'assistant'}]