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
In mechanical trituration of amalgam, what is adversely affected ? 
Select and explain. 
A. Hardness of filling, B. Tarnish resistance, C. Working time, D. Final gloss of the filling
C: Working time
Answer: C: Working time 
Explanation: None