Question:
Goal: tack

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
can be used to hang dish towel on the wall

Question:
Goal: To cut metal rods into two same sizes.

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Use a hacksaw to cut the metal rod at the middle point.

Question:
Goal: When making macarons, what is the best way to put the batter on the baking tray?

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Transfer the batter to a piping bag then squeeze it onto the prepared tray.