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
Setting time of amalgam is best controlled by 
Select and explain. 
A. Using spherical particles, B. Lathe cut alloy, C. Altering Hg-alloy ratio, D. Trituration time
D: Trituration time
Answer: D: Trituration time 
Explanation: None