This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oesophagus, Subject name: Surgery
[{'content': "What is Dohlman's Procedure in Zenker's Diverticulum? \nSelect and explain. \nA. Endoscopic Stapling of Septum, B. Endoscopic Suturing of Pouch, C. Resection of Pouch, D. Laser excision", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (a) Endoscopic Stapling of septumRef: Surgery Sixer 3rd Edition Page 322* Endoscopic Stapling Technique for Pharyngeal Pouch (Zenker's Diverticulum) is known as Dohlman's Procedure.", 'role': 'assistant'}]