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: Ophthalmology
[{'content': 'All of the following are true about prevention of vitamin A deficiency by supplements except: \nSelect and explain. \nA. Dose in children over 1 year is 2 lac IU orally, B. Dose in infants less than 6 month (not being breast fed is 50 thousand IV orally), C. Dose in first trimester of pregnancy is 1 lac IU, D. Under CSSM Programme first dose (1 lac IU) is given at 9 months of age along with measles', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Dose in first trimester of pregnancy is 1 lac IU', 'role': 'assistant'}]