You are presented with the question "hollow fur keeps animals what" and the following answer choices: 
- fats
 - camouflaged
 - safe
 - warm
 - cooled
 - liquid
 - live
 - from drowning

Now knowing that some animals' fur grows thicker for staying warm in the winter and during winter, their hollow fur absorbs much heat as they sun themselves, choose the best answer.


 

    warm     