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': 'Category II treatment- \nSelect and explain. \nA. 2HRZES, B. 1 HRZE, C. 5 HRZ, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 2HRZES", 'role': 'assistant'}]