This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Ophthalmology
[{'content': 'What is your diagnosis:- \nSelect and explain. \nA. Orbital blow out fracture, B. Orbital roof fracture, C. Oculomotor nerve paralysis, D. Retrobulbar hemorrhage', 'role': 'user'}, {'content': "Answer: A \nExplanation: Following image shows a defect in the orbital floor and the 'tear drop' sign in the antrum characteristic of blow out fractures of orbit. WATER'S view on X-RAY is helpful in eliciting orbital blow out fracture", 'role': 'assistant'}]