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': 'Increase in height in first year is by – \nSelect and explain. \nA. 40%, B. 50%, C. 60%, D. 75%', 'role': 'user'}, {'content': 'Answer: B \nExplanation: At birth, the average height of a child is 50 cm.\n\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 During first year height increases about 50% of birth height (25 cm).', 'role': 'assistant'}]