This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'Kussumauls breathing \nSelect and explain. \nA. Metabolic alkalosis, B. Respiratory alkalosis, C. Respiratory acidosis, D. Metabolic acidosis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Rapid,deep(Kussmaul) breathing usually implies metabolic acidosis but may also occur with pontomesencephalic lesions. Ref:Harrison's medicine -18th edition,page no:2251.", 'role': 'assistant'}]