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: Surgery
[{'content': 'A 45yr old man presented to the OPD dysphagia to both solid and liquids Esophageal manometry was performed = it revieled premature contraction with >20 % wet swallows and abnormally increased Lower esophageal pressure of >450mm hg \nSelect and explain. \nA. Type 1 achalasia, B. Type 2 achalasia, C. Type 3 achalasia, D. Jackhammer esophagus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ref : bailey and love 27th ed.', 'role': 'assistant'}]