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: Orthopaedics
[{'content': 'In children, all are true except - \nSelect and explain. \nA. Dislocations are rare, B. Comminuted fractures are common, C. Thick periosteum, D. Soft bones', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Uncommon injuries in children\n\nDislocation\nCommunited fracture\nHands & feet fracture', 'role': 'assistant'}]