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': 'When gap between the fracture segment is between 0.3-1mm, then healing occurs as: \nSelect and explain. \nA. Direct lamellar bone formation., B. Woven bone formation later on replaced by lamellar bone., C. Secondary healing., D. Any of the above.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]