[Q]: Which of the following solutions is better for the following goal:
How to ensure icing settles properly on a cake?

[A]: first cool the cake down to room temperature before you start icing

[Q]: Which of the following solutions is better for the following goal:
To store your cable in your backpack or suitcase

[A]: Use a pencil case or sunglasses case.

[Q]: Which of the following solutions is better for the following goal:
What is an easy way to keep a room dark during the day?

[A]: Purchase blackout curtains with liners.

[Q]: Which of the following solutions is better for the following goal:
how to make a candle that bleeds another color when melting

[A]:
make the interior how you want it (blood red). Then, once you have made those molded interiors, dip them in un-dyed soy. The opacity of the soy will cover up the color of the interior. Dip it a several time until you get a shell thick enough to your liking.