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': 'Oral hypoglycemics are useful in which of the types of diabetes mellitus \nSelect and explain. \nA. Mild stable maturity onset type, B. Juvenile type, C. Diabetes in obese, D. Diabetic ketoacidosis type', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]