This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: ENT
[{'content': 'Which of the following structures is seen in oropharynx? \nSelect and explain. \nA. Pharyngotympanic tube, B. Fossa of Rosenmuller, C. Palatine tonsil, D. Pyriform fossa', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (c) Palatine tonsil(Ref. Scott Brown, Vol 3; 739)Palatine tonsil lies in the lateral wall of oropharynx.Pharyngotympanic tube or Eustachian tube and Fossa of Rosenmuller is present in the lateral wall of nasopharynx.Pyriform fossa is a component of the hypo- or laryngopharynx.', 'role': 'assistant'}]