Finish the following sentence with the best choice: Make an ice-pack that won't drip

Choices:
- Place a water saturated sponge into a freezer bag, then freeze. When the ice-pack melts, the sponge will hold the melted water and not drip.
- Place a salted sponge into a freezer bag, then freeze the bag. When the ice-pack melts, the sponge will hold the salt and not spill or drip.

Answer:
Place a water saturated sponge into a freezer bag, then freeze. When the ice-pack melts, the sponge will hold the melted water and not drip.