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: Medicine
[{'content': "Chloride responsive alkalosis, causes are -a) Severe vomitingb) Bartter's syndromec) Milk alkali syndromed) Frusemide therapy \nSelect and explain. \nA. acd, B. bcd, C. abc, D. ab", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]