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: ENT
Dohlman's operation is related to - 
Select and explain. 
A. Carcinoma esophagus, B. Carcinoma larynx, C. Zenker's diverticulum, D. Nasal carcinoma
C: Zenker's diverticulum
Answer: C: Zenker's diverticulum 
Explanation: None