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': 'A most common complication of lateral condyle humerus fracture - \nSelect and explain. \nA. Malunion, B. Nonunion, C. VIC, D. Median nerve injury', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Amongst the given options, nonunion is the most common complication.', 'role': 'assistant'}]