This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Hypochloremic alkalosis is a complication of -a) Congenital pyloric stenosisb) Vomitingc) Haematemesisd) Aspirin intoxication \nSelect and explain. \nA. ad, B. ab, C. bd, D. cd', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]