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 impoant factor in fracture healing is: \nSelect and explain. \nA. Good alignment, B. Organization of blood clot, C. Accurate reduction and 100% apposition of fractured fragments, D. Immobilisation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Immobilization', 'role': 'assistant'}]