This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: National Immunization Schedule 2020-21, Subject name: Social & Preventive Medicine
[{'content': 'Vitamin A should be staed at the age of :- \nSelect and explain. \nA. 2 months, B. 9 months, C. 5-6 years, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: - Accordong to NIS Vit A should be staed at the age of 9 months & from then, should be given for every 6 months till 5yrs of age. - Hence, totally 9 doses of Vit A is given; i.e 17 lakh IU.', 'role': 'assistant'}]