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: Unknown
True about Nasal Endoscopy is: 
Select and explain. 
A. There are 4 passes, B. First pass is to examine middle meatus, C. Second pass is to examine the superior meatus, D. Third pass is the examine the inferior meatus
C: Second pass is to examine the superior meatus
Answer: C: Second pass is to examine the superior meatus 
Explanation: All other options are wrong – the right answers are:
There are three passes
First is along inferior meatus
Second is to inspect superior meatus and sphenoethmoid recess
Third is to inspect the middle meatus