This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Which of the following is treatment for chronic dacryocystitis? 
Select and explain. 
A. Dacryocystorhinostomy, B. Dacryocystectomy, C. Massaging, D. Syringing
A: Dacryocystorhinostomy
Answer: A: Dacryocystorhinostomy 
Explanation: Dacryocystorhinostomy(DCR) is the treatment of choice for chronic dacryocystitis.