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': 'Features seen in a patient with chronic vomiting are all EXCEPT: March 2013 \nSelect and explain. \nA. Hyponatremia, B. Hypochloremia, C. Metabolic acidosis, D. Hypokalemia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Metabolic acidosis', 'role': 'assistant'}]