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': 'Which of the following does not form ring of Waldeyer \nSelect and explain. \nA. Adenoids, B. Eustachian, C. Palatine, D. None', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ring of Waldeyer consists of following tonsils\n\n\xa0Nasopharyngeal(Adenoids)\n\xa0Eustachian\n\xa0Palatine\n\xa0Lingual', 'role': 'assistant'}]