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': "Gerlach tonsil in Waldayer's ring is? \nSelect and explain. \nA. Tubal tonsil, B. Palatine tonsil, C. Pharyngeal tonsil, D. Lingual tonsil", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Tubal tonsils also called as Gerlach&;s tonsils are located in nasopharynx on the lateral wall behind the eustachian tube opening. (Ref: Scott brown textbook of otorhinolaryngology and head and neck surgery Volume 1, Pg No. 285)', 'role': 'assistant'}]