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': 'Common carotid artery divides at the level of - \nSelect and explain. \nA. Hyoid bone, B. Cricoid cartilage, C. Superior border of thyroid cartilage, D. Inferior border of thyroid cartilage', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]