This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infectious disease, Subject name: Pediatrics
[{'content': 'National immunization programme, all are involved except \nSelect and explain. \nA. TT, B. Hepatitis B, C. OPV, D. Measles', 'role': 'user'}, {'content': 'Answer: B \nExplanation: TT should be given at 10 & 16 years. OPV should be given at 0,6,10,14 weeks and booster at 18-24 months. Measles vaccine is given at the completion of 9 months of age. Hepatitis B ,though not included, may be given in any of the following schedules: A. 0, 6 & 14 weeks B. 0, 1 & 6 months. C. 6, 10 & 14 weeks. Reference: Ghai essential pediatrics 6th edition Page 200', 'role': 'assistant'}]