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
Accessory canals are most numerous in apical third, which one is 2nd numerous in this regard 
Select and explain. 
A. Middle Third, B. Coronal Third, C. Both are equal, D. None of the above
B: Coronal Third
Answer: B: Coronal Third 
Explanation: Apical third has accessory canals: 74% of cases
Coronal 3rd have accessory canals: 15% of cases
Middle third has accessory canals: 11% of cases