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 kit has been designed & preferred specially for removal of fibre reinforced composite post? 
Select and explain. 
A. Ruddle post removal system, B. Gonion kit, C. Gyro kit, D. JS extractor kit
C: Gyro kit
Answer: C: Gyro kit 
Explanation: None