This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Complications of reflux esophagitis are all Except 
Select and explain. 
A. Stricture, B. Schazki's ring, C. Barrett'a esophagus, D. Achalasia cardia
D: Achalasia cardia
Answer: D: Achalasia cardia 
Explanation: COMPLICATION OF GERD 1.Erosive oesophagitis 2.Strictures- oesophageal or peptic 3.Oesophageal shoening 4.Barretts Oesophagus 5.Adenocarcinoma of oesophagus 6.Schazki&;s ring- aetiology not clear but there is a hypothesis stating that it is a sho peptic stricture occurring as a consequence of gastroesophageal reflux disease .(REF.BAILEY AND LOVE 26TH EDITION PA 11 AND CHAPTER 62) .