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 origin of thyroglossal duct is 
Select and explain. 
A. Foramen caecum, B. Tuberculum impar, C. Rathke's pouch, D. Rosenmuller's fossa
A: Foramen caecum
Answer: A: Foramen caecum 
Explanation: None