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: Biochemistry
[{'content': 'Prolonged carbohydrate deficiency leads to? \nSelect and explain. \nA. Metabolic alkalosis, B. Ketoacidosis, C. Vitamin C deficiency, D. Respiratory acidosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]