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
Pulp Extirpating instrument among the following is 
Select and explain. 
A. Barbed broach, B. Files, C. Reamers, D. Spreaders
A: Barbed broach
Answer: A: Barbed broach 
Explanation: None