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
Common carotid aery divides at the level of: 
Select and explain. 
A. Hyoid bone, B. Cricoid cailage, C. Superior border of thyroid cailage, D. Inferior border of thyroid cailage
C: Superior border of thyroid cailage
Answer: C: Superior border of thyroid cailage 
Explanation: C i.e., Superior border of thyroid cailage