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: Pharmacology
Following are radiological evidence of Achalasia cardia except not related -radiology 
Select and explain. 
A. Smooth narrowing of esophagus, B. Dilated touous esophagus, C. Absence of air in the fundus, D. Exaggerated peristalsis
D: Exaggerated peristalsis
Answer: D: Exaggerated peristalsis 
Explanation: .