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
Which of the following structures is seen in oropharynx? 
Select and explain. 
A. Pharyngotympanic tube, B. Fossa of Rosenmuller, C. Palatine tonsil, D. Pyriform fossa
C: Palatine tonsil
Answer: C: Palatine tonsil 
Explanation: (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.