This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Benign Gastric Disease, Subject name: Surgery
[{'content': "Hypochloremia, hypokalemia and alkalosis are seen in: \nSelect and explain. \nA. Congenital hypertrophic pyloric stenosis, B. Hirschsprung's disease., C. Esophageal atresia, D. Jejunal atresia", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e. Congenital hypertrophic pyloric stenosis Biochemical abnormality in congenital hypertrophic pyloric stenosis is a regular feature of AIIMS and AI examinations it has been repeated several times.The biochemical abnormality seen are:HypokalemiaHypochloremiaAlkalosis andParadoxical aciduriaThis topic has been discussed in detail earlier.", 'role': 'assistant'}]