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: Surgery
The most common level of thyroglossal cyst is: 
Select and explain. 
A. Lingual, B. Infra-Lingual (caecum), C. Supra-hyoid, D. Infra-hyoid
D: Infra-hyoid
Answer: D: Infra-hyoid 
Explanation: None