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': 'Preferred treatment of cubitus varus is - \nSelect and explain. \nA. Medial closing wedge osteotomy, B. Lateral closing wedge osteotomy, C. Medial opening wedge osteotomy, D. Lateral opening wedge osteotomy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. Lateral closing wedge osteotomyCubitus varus- lateral closing wedge osteotomy, medial opening wedge osteotomy.', 'role': 'assistant'}]