This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
[{'content': 'Meaning of baby has 15th percentile of head circumference is- \nSelect and explain. \nA. 15% of children will have HC more than that, B. 15% of HC, the child is having, C. 15% of children will have HC less than that, D. None.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref:Parks 23rd edition Means 15% of children have HC less than that.', 'role': 'assistant'}]