This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, Subject name: ENT
[{'content': "Waldeyer's ring consists of all of the following except \nSelect and explain. \nA. Palatine tonsils, B. Pharyngeal tonsils, C. Tubal tonsils, D. Posterior Auricular nodes", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lymphoid tissue aggregated at places in the subepithelial layer of the pharynx is collectively called Waldeyer&;s ring. It is formed by 1. Nasopharyngeal tonsil or adenoids 2. Palatine tonsils 3. Lingual tonsil 4. Tubal tonsil ( In fossa of Rosenmuller) 5. Lateral pharyngeal bands 6. Nodules in the posterior pharyngeal wall. (Ref: Diseases of Ear, Nose and Throat, PL Dhingra; 7th edition, pg no. 269)', 'role': 'assistant'}]