This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2018, Subject name: ENT
[{'content': "Which of the following is true about Torous tubarius? \nSelect and explain. \nA. Nasopharyngeal bursitis, B. Most common site of carcinoma Nasopharynx, C. Tubal elevation in lateral wall of Nasopharynx, D. Gives rise to Rathke's pouch", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lateral wall of nasopharynx - Each lateral wall presents pharyngeal opening of eustachian tube situated 1.25cm behind posterior end of inferior turbinate Bounded above and behind by an elevation called Torous Tubarius. Raised by the cailage of the tube Above and behind the tubal elevation is a recess - fossa of Rosenmuller (commonest site for origin of carcinoma) A ridge extends from the lower end of torus tubarius to the lateral pharyngeal wall - salpingopharyngeal fold.', 'role': 'assistant'}]