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: Anatomy
[{'content': "Hypochloremia, hypokalemia and alkalosis are seen in- \nSelect and explain. \nA. Hirschsprung's disease, B. Esophageal atresia, C. Congenital hyperophic pyloric stenosis, D. Jejunal atresia", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Biochemical abnormality in congenital hyperophic pyloric stenosis is a regular feature of AIIMS and AI examinations it has been repeated several times. The biochemical abnormalities seen are: Hypokalemia Hypochloremia Alkalosis and Paradoxical aciduria Ref : Schwaz 9/e p59', 'role': 'assistant'}]