This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'Treatment of chronic dacrocystitis - \nSelect and explain. \nA. Dacrocystorhinostomy, B. Antibiotics, C. Probing, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Conservative treatment by probing and lacrimal syringing, Dacrocystorhinostomy, Antibiotics are used. Ref : ak khurana 6th edition page no 394 REF IMG', 'role': 'assistant'}]