This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'True regarding opening of auditory tube in nasopharynx is: \nSelect and explain. \nA. Posterior to inferior nasal concha, B. Posterior to middle nasal concha, C. Superior to inferior nasal concha, D. Inferior to inferior nasal concha', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The lateral wall of nasopharynx has pharyngeal opening of the auditory tube, at the level of the inferior nasal concha and 1.2 cm behind it', 'role': 'assistant'}]