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: Dental
Which of the following tooth can show any of the eight types of Vertucci’s classiﬁcation? 
Select and explain. 
A. Lower 1st premolar, B. Upper 1st premolar, C. Lower 2nd premolar, D. Upper 2nd premolar
D: Upper 2nd premolar
Answer: D: Upper 2nd premolar 
Explanation: Maxillary 2nd premolar can show any of the eight types of Vertucci's classiﬁcation.