[Q]: Which of the following solutions is better for the following goal:
To paint a wall,

OPTIONS:
- pour paint into a roller pan, roll a roller brush through the paint in the pan, then use the roller brush to spread it onto the wall.
- pour paint onto the floor, roll a roller brush through the paint on the floor, then use the roller brush to spread it onto the wall.

[A]: pour paint into a roller pan, roll a roller brush through the paint in the pan, then use the roller brush to spread it onto the wall.

[Q]: Which of the following solutions is better for the following goal:
To rinse potatoes, you can

OPTIONS:
- Scrub with cold water
- Scrub with boiling water

[A]: Scrub with cold water

[Q]: Which of the following solutions is better for the following goal:
Enhance dyes of dark clothing.

OPTIONS:
- Put 5 teabags in washing machine.
- Put 5 teabags in dryer machine.

[A]: Put 5 teabags in washing machine.

[Q]: Which of the following solutions is better for the following goal:
Protect head of disposable razors during travel.

OPTIONS:
- Place binder clip over blade.
- Place binder clip over handle.

[A]:
Place binder clip over blade.