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
Who discovered stainless steel? 
Select and explain. 
A. Adams C.P., B. Schwarz A.M., C. Brearley, D. Backofen W.A and Gales G.F
C: Brearley
Answer: C: Brearley 
Explanation: None