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': 'Myositis ossificans is most common around the -- joint \nSelect and explain. \nA. Knee, B. Elbow, C. Wrist, D. Hip', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Elbow', 'role': 'assistant'}]