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: ENT
All of the following vessels supply blood to the tonsils EXCEPT - 
Select and explain. 
A. Ascending pharyngeal artery, B. Tonsillar branch of facial artery, C. Superior labial artery, D. Dorsal lingual artery
C: Superior labial artery
Answer: C: Superior labial artery 
Explanation: None