Question:
Goal: How can I clean my couch

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Take the outer layer of cloth off and wash it

Question:
Goal: How to charge cell phone

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Plug cell phone into cell phone charger in the wall.

Question:
Goal: bobby pin

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
can scratch table .