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': 'The most common complication of clavicle fracture is \nSelect and explain. \nA. Injury to brachial plexus, B. Malunuion, C. Stiffness of shoulder, D. Non union', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Malunion', 'role': 'assistant'}]