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
The radicular pulp is continuous with tissues of the periapical area via the: 
Select and explain. 
A. Pulp canal, B. Pulp chamber, C. Mental foramen, D. Apical foramen
D: Apical foramen
Answer: D: Apical foramen 
Explanation: None