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: Surgery
During esophagoscopy, the area in the esophagus mostly perforated is- 
Select and explain. 
A. At aortic arch, B. Mid esophagus, C. At cricopharyngeus muscle, D. At esophagogastric junction
C: At cricopharyngeus muscle
Answer: C: At cricopharyngeus muscle 
Explanation: • Esophageal instrumentation accounts for the large majority of iatrogenic perforations, with the cricopharyngeal area most commonly injured