[Q]: Which of the following solutions is better for the following goal:
How do you dust a desktop computer?

[A]: First, you need to turn off the computer and unplug it from the wall. Then, you need to open the side panel and, using a can of compressed air, blow the dust out of your computer. Finally, close the side panel back and plug the computer.

[Q]: Which of the following solutions is better for the following goal:
How to perform a barbell curl?

[A]: Stand straight, with the barbell held in the hands, arms resting. Bend your arms at the elbow joint, to lift the barbell to a flat angle, and then lower it back down and repeat.

[Q]: Which of the following solutions is better for the following goal:
How do I remove cigarette smell from an electronic device, silicone material, or clothes?

[A]: Let the affected item air out as much as possible. Use dryer sheets and rubbing alcohol to clean the surface of the item and to remove the smell. If possible, open up the item and clean the insides.

[Q]: Which of the following solutions is better for the following goal:
To sprinkle grated cheddar cheese over bacon,

[A]:
take a small handful of grated cheddar cheese from it's plastic bag in your hand, and drop tiny amounts while moving your hand evenly over the bacon.