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': 'Puscher s retinopathy results from: \nSelect and explain. \nA. Head injuries, B. Chest injuries, C. Trichiasis, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Chest injuries', 'role': 'assistant'}]