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: Surgery
[{'content': 'Rhinoplasty is usually done at the age (years) of - until the nose is fully grown- \nSelect and explain. \nA. 6 years, B. 12 years, C. 16 years, D. 25 years', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 16 years", 'role': 'assistant'}]