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 vertical fracture of root seen with gutta percha obturation is due to: 
Select and explain. 
A. The vertical compression of warm GP points, B. Lateral condensation of GP points, C. Use of spreader, D. Injection molding technique
A: The vertical compression of warm GP points
Answer: A: The vertical compression of warm GP points 
Explanation: None