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
In post core which of following gutta-percha technique is used 
Select and explain. 
A. Thermoplasticized, B. Vertical, C. Sectional, D. Lateral
C: Sectional
Answer: C: Sectional 
Explanation: None