The correct answer is: A. AC outlet
A conductive work bench should be grounded to an AC outlet to prevent static electricity buildup. Static electricity can damage sensitive electronic components, so it is important to take steps to prevent it. Grounding the work bench to an AC outlet provides a path for static electricity to flow safely away from the bench and into the ground.
Option B, ground to bench, is incorrect because it does not provide a path for static electricity to flow away from the bench. Option C, to the motherboard, is incorrect because the motherboard is not a good conductor of electricity. Option D, to the PC’s chassis, is incorrect because the PC’s chassis is not a good conductor of electricity. Option E, none of the above, is incorrect because grounding the work bench to an AC outlet is the best way to prevent static electricity buildup.
Here are some additional details about each option:
- Option A, AC outlet: An AC outlet is a good conductor of electricity, so it provides a path for static electricity to flow away from the work bench and into the ground.
- Option B, ground to bench: Grounding the work bench to the bench itself does not provide a path for static electricity to flow away from the bench. The bench is not a good conductor of electricity, so static electricity will build up on the bench.
- Option C, to the motherboard: The motherboard is not a good conductor of electricity, so grounding the work bench to the motherboard does not provide a path for static electricity to flow away from the bench.
- Option D, to the PC’s chassis: The PC’s chassis is not a good conductor of electricity, so grounding the work bench to the PC’s chassis does not provide a path for static electricity to flow away from the bench.
- Option E, none of the above: None of the other options provide a path for static electricity to flow away from the work bench.