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': "Which among the following is/are example of Serial extraction: \nSelect and explain. \nA. Dewel's method., B. Tweed's method., C. Nance method., D. All of the above.", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]