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': 'All are true about growth chart except \nSelect and explain. \nA. The position of dots is more important than direction, B. It is a tool for educating mothers, C. Between top 2 lines, it shows ‘Road-to-Health’ or ‘zone of normality’, D. Lowermost line corresponds to children below 3 percentile', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]