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': 'Height of children in 2-10 years of age is increased by- \nSelect and explain. \nA. 2 cm/year, B. 4 cm/year, C. 6 cm/year, D. 10 cm / year', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e., 6 cm/year "After 4 years, the child gains about 5 cm in height every year, until the age of 10 years" -- O.P. Ghai. "An average child gains approximately 7-8 cm in height between the age of 2-6 years and 6-7 cm in height between 6-12 years". -- Nelson Amongst given option, 6 cm/year is the best answer.', 'role': 'assistant'}]