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: Anatomy
[{'content': "The tonsillar ring or Waldeyer's ring consists of which of the following: \nSelect and explain. \nA. The adenoid, B. The lingual tonsil, C. The tonsil, D. All of the above", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]