[Q]: Which of the following solutions is better for the following goal:
remove paint from concrete

OPTIONS:
- Use a potato scrub brush or a scraper to remove the loosened paint. You could also use a pressure washer for outdoor concrete surfaces such as driveways or patios. Repeat the steps if necessary. In some cases, a second or third application of paint stripper is needed to thoroughly remove paint from concrete.
- Use a wire scrub brush or a scraper to remove the loosened paint. You could also use a pressure washer for outdoor concrete surfaces such as driveways or patios. Repeat the steps if necessary. In some cases, a second or third application of paint stripper is needed to thoroughly remove paint from concrete.

[A]: Use a wire scrub brush or a scraper to remove the loosened paint. You could also use a pressure washer for outdoor concrete surfaces such as driveways or patios. Repeat the steps if necessary. In some cases, a second or third application of paint stripper is needed to thoroughly remove paint from concrete.

[Q]: Which of the following solutions is better for the following goal:
Create a leather book cover.

OPTIONS:
- Lay out cardboard for the spine, front and back of the book and put them face down. Get a piece of leather that is a few inches larger than the cardboard and press the leather onto the cardboard. Wrap the extra leather around the cardboard to be inside of the book cover.
- Lay out cardboard for the spine, front and back of the book and tape together. Get a piece of leather that is a few inches larger than the taped cardboard and using glue press the leather onto the cardboard. Wrap the extra leather around the cardboard to be inside of the book cover.

[A]: Lay out cardboard for the spine, front and back of the book and tape together. Get a piece of leather that is a few inches larger than the taped cardboard and using glue press the leather onto the cardboard. Wrap the extra leather around the cardboard to be inside of the book cover.

[Q]: Which of the following solutions is better for the following goal:
How can I be tidy when painting?

OPTIONS:
- Put paint in a coffee can, cut a triangle out of the center of the side of the can, and use the sides of the triangle to wipe off excess paint while working.
- Put paint in a coffee can, cut a triangle out of the center of the lid, and use the sides of the triangle to wipe off excess paint while working.

[A]: Put paint in a coffee can, cut a triangle out of the center of the lid, and use the sides of the triangle to wipe off excess paint while working.

[Q]: Which of the following solutions is better for the following goal:
To tie an overhand knot,

OPTIONS:
- make a loop that looks like the loop of a roller coaster. Insert one end of the string into the loop. Pull both ends in opposite directions so that the knot becomes tight.
- make a loop that looks like the loop of a roller coaster. Insert one end of the string into the loop. Pull both ends in the same direction so that the knot becomes tight.

[A]:
make a loop that looks like the loop of a roller coaster. Insert one end of the string into the loop. Pull both ends in opposite directions so that the knot becomes tight.