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': 'Green stick fractures are most common with: \nSelect and explain. \nA. Older people, B. Adult, C. Children, D. Soldiers', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]