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': 'All of the following cause high anion gap metabolic acidosis except - \nSelect and explain. \nA. Lactic acidosis, B. Salicylats poisoning, C. Ethylene glycol poisoning, D. Ureterosigmoidostomy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes of High anion gap acidosis \n\nLactic acidosis\xa0\xa0\xa0 \xa0\nToxins\xa0\n\n\nEthylene glycol\nMethanol\xa0\nSalicylates\xa0\n\n\xa0 \xa0 3. Renal failure\xa0\n\xa0 \xa0 4. Ketoacidosis\n\xa0 \xa0a) Diabetes\n\xa0 \xa0b) Alcohol\n\xa0 \xa0c) Starvation', 'role': 'assistant'}]