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 is not true about high copper amalgam alloys: 
Select and explain. 
A. Low tensile and compressive strength, B. Low Hg: Alloy ratio, C. High tensile strength, D. Low creep
A: Low tensile and compressive strength
Answer: A: Low tensile and compressive strength 
Explanation: None