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
Which is the only medial branch of the external carotid artery? 
Select and explain. 
A. Superior thyroid, B. Lingual, C. Internal maxillary, D. Ascending pharyngeal
D: Ascending pharyngeal
Answer: D: Ascending pharyngeal 
Explanation: None