This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'After administrative live vaccine, immunoglobulins are given after- \nSelect and explain. \nA. 1 week, B. 2 weeks, C. 10 weeks, D. 12 weeks', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .live vaccines should not be given for 12 weeks after an injection of normal human immunoglobulin.and if a live vaccine has already be given .NHIg injection sholud be deferred for 2 weeks. ref:park&;s textbook,ed 22,pg no 102', 'role': 'assistant'}]