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
Most mature enamel is found at? 
Select and explain. 
A. Apical region, B. Incisal edge and cusp tip, C. Middle region, D. Cervical region
B: Incisal edge and cusp tip
Answer: B: Incisal edge and cusp tip 
Explanation: None