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
True about Zenker's diveiculum is all, EXCEPT: 
Select and explain. 
A. Originates from the anterior wall of the esophagus, B. Occurs through triangular area of weakness, C. It tends to dete from the midline, mostly to the left, D. None of the above
A: Originates from the anterior wall of the esophagus
Answer: A: Originates from the anterior wall of the esophagus 
Explanation: Zenker diveiculum originates from the posterior wall of the esophagus in a triangular area of weakness, limited inferiorly by the cricopharyngeus muscle and superiorly by the inferior constrictor muscles (ie, the Killian triangle). As the diveiculum enlarges, it tends to dete from the midline, mostly to the left