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': 'Respiratory alkalosis occur in - \nSelect and explain. \nA. Excessive ventilation, B. Pyloric stenosis, C. Diabetic ketoacidosis, D. Primary hyperaldosteronism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Excessive ventilation drives out CO2\xa0from the body causing respiratory alkalosis.\nPrimary hyperaldosteronisni and pyloric stenosis cause metabolic alkalosis\nDiabetic ketoacidosis causes metabolic acidosis\nConsider the equation', 'role': 'assistant'}]