You are presented with the question "Why do some animals grow thicker fur around Christmas in the Northern hemisphere?" and the following answer choices: 
- overheat
 - protect them
 - stay warm
 - climate
 - adding heat
 - warm other animals
 - stay cool
 - sun's heat

Now knowing that some animals' fur grows thicker for staying warm in the winter and winter is snow, winter is Christmas, choose the best answer.


 

   stay warm      