This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'A 55ps old male presents with tachypnea and mental confusion. Blood glucose 350mg/dL pH 2.7 What is the most likely acid base disorder \nSelect and explain. \nA. metabolic alkalosis, B. Respiratory alkalosis, C. Metabolic acidosis, D. Respiratory acidosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The condition of patient is D K A ref : harrisons 21st ed', 'role': 'assistant'}]