which grinder accessory can be used to provide a stable surface for flexible sanding discs or buffing pads…

which grinder accessory can be used to provide a stable surface for flexible sanding discs or buffing pads to rest against?\n- tool rest\n- backing pad\n- flap disc\n- arbor shield
Answer
Brief Explanations:
A backing pad is designed to hold and provide a stable surface for flexible sanding discs or buffing pads to rest against during grinding operations. A tool - rest is for supporting tools, a flap disc is a type of abrasive disc, and an arbortor shield is for safety.
Answer:
B. backing pad