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': 'A 20 year old man complains of difficulty in reading the newspaper with his right eye, three weeks after sustaining a gun shot injury to his left eye. The most likely diagnosis is - \nSelect and explain. \nA. Macular edema, B. Sympathetic ophthalmitis, C. Optic nerve avulsion, D. Delayed viterous hemorrhage', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Symptoms in sympathizing eye usually develop after 4-8 weeks of injury to exciting eye. However, it can also develop early, earliest reported case is after 9 days of injury.', 'role': 'assistant'}]