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
Oropharynx lies against which vertebra 
Select and explain. 
A. C1, B. C2, C. C3, D. C4
B: C2
Answer: B: C2 
Explanation: Oropharynx lies opposite to C2 and upper part of C3 vertebrae.
Pharynx ends at C6 vertebrae.