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': 'Normal anionic gap is seen in: March 2009 \nSelect and explain. \nA. Lactic acidosis, B. Diarrhea, C. Ketoacidosis, D. Methanol poisoningo', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Diarrhea', 'role': 'assistant'}]