This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pediatric orthopedics, Subject name: Orthopaedics
[{'content': 'Which is the commonest fracture in children \nSelect and explain. \nA. Fracture clavicle, B. Supracondylar fracture, C. Green stick fracture of lower end of radius, D. Rib fracture', 'role': 'user'}, {'content': "Answer: B \nExplanation: Common fractures at different ages* At bih Clavicle, Humerus* In children Supracondylar fracture of the humerus, Epiphyseal injuries* In adults Fractures of shafts of long bones* In elderly people Colles' fracture, Fracture neck of femur REF:Maheswari pg: 36", 'role': 'assistant'}]