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': 'All are complications of chronic staphylo-coccal blepharoconjunctivitis except: \nSelect and explain. \nA. Chalazion, B. Marginal conjunctivitis, C. Follicular conjunctivitis, D. Phylectenular conjunctivitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Chalazion', 'role': 'assistant'}]