Final answer:
Under triturated amalgam alloy has a rough appearance and sets too slowly, which compromises the strength of dental restorations.
Step-by-step explanation:
The student asked about the properties of under triturated amalgam alloy, which is used in dental restorations. Under triturated amalgam has a grainy or rough appearance and sets too slowly, resulting in a restoration that is weaker than one made with properly triturated amalgam. The correct answer to the question is c) Rough, slowly.
Under triturated amalgam alloy has a rough appearance and sets too slowly, resulting in a weaker restoration.