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
Indium is added to amalgam? 
Select and explain. 
A. It reduces mercury release during mastication, B. It reduces mercury release during polishing, C. It reduces gamma phase, D. It reduces gamma 2 phase
B: It reduces mercury release during polishing
Answer: B: It reduces mercury release during polishing 
Explanation: None