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
Sistrunk's operation is done for: 
Select and explain. 
A. Thyroglossal cyst, B. Thyroglossal fistula, C. Both the above, D. None of the above
C: Both the above
Answer: C: Both the above 
Explanation: None