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: Social & Preventive Medicine
[{'content': 'Drugs are used in AKT-4 kit for TB as \nSelect and explain. \nA. None, B. Decrease in resistance by conjugation, C. To cure disease early, D. Decrease in resistance by mutation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]