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
The component in very minor quantity in stainless steel that changes the properties to a maximum level is 
Select and explain. 
A. Carbon, B. Molybdenum, C. Chromium, D. Nickel
A: Carbon
Answer: A: Carbon 
Explanation: None