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
Cyst coming from an unerupted permanent tooth is 
Select and explain. 
A. Dentigerous cyst, B. Epulis, C. Odontogenic keratocyst, D. None of the above
A: Dentigerous cyst
Answer: A: Dentigerous cyst 
Explanation: Dentigerous cyst is most commonly arises from lower third molar teeth.