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': 'Ophthalmia nodosa occurs due to: \nSelect and explain. \nA. Leprotic conjunctivitis, B. Syphilitic conjunctivitis, C. Sarcoidosis conjunctivitis, D. Irritation by hair of caterpillar', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Irritation by hair of caterpillar', 'role': 'assistant'}]