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
Weine’s classification of the following tooth is: 
Select and explain. 
A. Type I, B. Type II, C. Type III, D. Type IV
A: Type I
Answer: A: Type I 
Explanation: Weine's classification 

Type I: Single canal from pulp chamber to apex. 
Type II: Two canals leaving from the chamber and merging to form a single canal short of the apex. 
Type III: Two separate and distinct canals from chamber to apex. 
Type IV: One canal leaving the chamber and dividing into two separate and distinct canals.