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
Instrument used for lateral condensation of guttapercha along the canal wall 
Select and explain. 
A. Barbed broach, B. Plugger, C. Reamer, D. Spreader
D: Spreader
Answer: D: Spreader 
Explanation: None