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': 'To prevent veical transmission of HIV in a child of pregnant mother, used is: \nSelect and explain. \nA. Zidovudine for mother (36 weeks) and child (6 weeks), B. Zidovudine for 6 months to mother and 6 weeks to child, C. Zidovudine for 6 Weeks, D. Avoid zidovidine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Zidovudine for mother (36 weeks) and child (6 weeks)', 'role': 'assistant'}]