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': 'Immune reconstitution inflammatory syndrome typically occurs following anti retroviral therapy after a duration of: \nSelect and explain. \nA. 1-2 weeks, B. 2-6 weeks, C. 6-12 months, D. 1-2 years', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Typically immune reconstitution inflammatory syndrome occurs within 2-12weeksof initiation of A, though it may present later between 6 weeks to 6 months. Ref:', 'role': 'assistant'}]