This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'DOTS chemotheraphy is given for - \nSelect and explain. \nA. TB, B. Leprosy, C. AIDS, D. Tetanus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: DOTS remain central to the public health approach to tuberculosis control, which is now presented as Stop TB Strategy. Ref:PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition , Page 176', 'role': 'assistant'}]