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
[{'content': 'Howah operation is done for \nSelect and explain. \nA. Achalasia cardia, B. Frontal sinusitis, C. Pyloric stenosis, D. EDH', 'role': 'user'}, {'content': 'Answer: B \nExplanation: HOWAH OPERATION is done mainly for the treatment of frontal sinusitis. .treatment for ACHALASIA CARDIA includes *modified heller&;s operation *POEM(peroral endoscopic myotomy *forcible dilatation ref: SRB&;s manual of surgery,5th ed, pg no 798', 'role': 'assistant'}]