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: ENT
Which is not visualised on posterior rhinoscopy- 
Select and explain. 
A. Eustachian tube, B. Inferior meatus, C. Middle meatus, D. Superior concha
B: Inferior meatus
Answer: B: Inferior meatus 
Explanation: None