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': 'Metabolic acidosis may result due to? \nSelect and explain. \nA. Diabetic ketoacidosis, B. Diarrhea, C. Renal failure, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Metabolic acidosis can occur because of an increase in endogenous acid production (such as lactate and ketoacids), loss of bicarbonate (as in diarrhea) or accumulation of endogenous acids (as in renal failure). Metabolic acidosis has profound effects on the respiratory, cardiac and nervous systems.', 'role': 'assistant'}]