[Q]: Which of the following solutions is better for the following goal:
To remove the old strings from a guitar.

[A]: Unwind the strings using the tuning pegs, and unwrap them to take them off.

[Q]: Which of the following solutions is better for the following goal:
To hold a nail in place while hammering, without risking your fingers,

[A]: hold the nail sin place with a clothes pin while hammering the nail.

[Q]: Which of the following solutions is better for the following goal:
keys

[A]: is a element of gaining entry to a room for the deaf

[Q]: Which of the following solutions is better for the following goal:
Get the dust off the ceiling near the ceiling fan.

[A]:
put a rag or pillow case over a broom and reach up there and wipe off the ceiling.