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: Pediatrics
[{'content': 'Postnatally when is the growth velocity maximum ? \nSelect and explain. \nA. In the first year of life, B. In the second year of life, C. In the seventh year of life, D. In adolescence', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Growth follows a sigma shaped curve.\nThe fetus grows fast in the first half of gestation, thereafter the rate of growth is slowed down till the baby is born.\nIn the early postnatal period velocity of growth is high during the first few months.\nA second phase of accelerated growth is during puberty.', 'role': 'assistant'}]