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
which of the following is used to remove broken instruments in root canal: 
Select and explain. 
A. Masserman kit, B. Peizoelectric kit, C. Magnetorestrictive kit, D. Rhodes kit
A: Masserman kit
Answer: A: Masserman kit 
Explanation: Masserman kit or endoextractor kit is used for removal of broken instruments in root canals (MAN -98, KAR -03)