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': 'Risk of mother of child HIV transmission in pregnant woman at the time of delivery and after delivery in non-breast feeding woman is - \nSelect and explain. \nA. 5-10%, B. 10-15%, C. 15-30%, D. More than 50%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]