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: Dental
[{'content': 'What is the type of suture shown below? \nSelect and explain. \nA. Sling ligation, B. Closed anchor suture, C. Periosteal suture, D. Distal wedge suture', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]