This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Leprosy, HIV & STDs, Subject name: Social & Preventive Medicine
[{'content': 'Antiretroviral drugs are staed for HIV/ AIDS patients if CD4 count is:- \nSelect and explain. \nA. < 500, B. < 350, C. < 200, D. Any CD4 count', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A should be staed in all HIV positive patients regardless of WHO clinical stage and at any CD4 cell count. Normal CD4 count 900-1400 Oppounistic infection occurs if CD4 count less than 500.', 'role': 'assistant'}]