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': 'The most common bone fractured during birth - \nSelect and explain. \nA. Clavicle, B. Scapula, C. Radius, D. Humerus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Clavicular fracture are the most common fractures diagnosed as birth trauma.\nClavicles are at risk of fractures during shoulder dystocia or in a breech delivery with arms extended.', 'role': 'assistant'}]