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
The property of amalgam that makes it undesirable to bevel occlusal margins of an amalgam cavity preparation is its: 
Select and explain. 
A. Flow, B. Ductility, C. Brittleness, D. Malleability
C: Brittleness
Answer: C: Brittleness 
Explanation: None