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
Resistance form of endodontics is: 
Select and explain. 
A. Resists movement of gutta-percha in apical area, B. To allow use of spreader in lateral condensation, C. Fracture of root while vertical condensation, D. None of the above
A: Resists movement of gutta-percha in apical area
Answer: A: Resists movement of gutta-percha in apical area 
Explanation: None