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: Pediatrics
[{'content': 'Large doses of pyridoxine are of value in some cases of – \nSelect and explain. \nA. Phenylketonuria, B. Homocystinuria, C. Nonketotic hyperglycemia, D. Ketotic hyperglycemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]