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
Another name for electrolytic precipitate of gold is: 
Select and explain. 
A. Mat gold, B. Gold foil, C. Electrophy, D. All of the above
A: Mat gold
Answer: A: Mat gold 
Explanation: Mat Gold
In this form, gold is precipitated mainly through electrodeposition and it is accumulated in the form of strips or cakes.They are then subjected to a sintering process, in which there will be surface diffusion of the atoms of the particles, creating minimal cohesion between the particles.