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
Which phase provides maximum strength in hardened mercury/silver alloy? 
Select and explain. 
A. Silver / Mercury phase, B. Silver / Tin phase, C. Tin / Mercury phase, D. Zinc / Mercury phase
B: Silver / Tin phase
Answer: B: Silver / Tin phase 
Explanation: None