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': 'Metabolic abnormality seen in congenital hyperophic pyloric stenosis is \nSelect and explain. \nA. Hypochloremic hypokalemic metabolic alkalosis, B. Hyperchlonemic hypokalemic metabolic alkalosis, C. Hypochloremic hypokalemic metabolic acidosis, D. Hyperchoremic hypokalemic metabolic acidosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: To control alkalosis, kidney secretes excess bicarbonate. Due to hyponatremia, body conserves sodium and so bicarbonate is secreted along with the hydrogen in. Urine becomes acidic and called as paradoxical aciduria Reference: SRB edition: 5th page no:830', 'role': 'assistant'}]