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
Example of slow speed rotary stainless steel instruments: 
Select and explain. 
A. GG drill and Peeso reamer, B. Nickel-titanium rotary instruments, C. Reciprocating handpiece, D. Vertical stroke handpiece
A: GG drill and Peeso reamer
Answer: A: GG drill and Peeso reamer 
Explanation: Rotary Endodontic instrument used with a Handpiece 
They can be further subdivided into:

Slow-speed rotary stainless steel instruments  eg. Gates gliden drill, peeso reamer
Nickel-titanium rotary instrument.

Textbook of Endodontics Nisha GARG 3rd ED