Fact 1: If an animal lives under ground then that animal will be protected from a wild fire.

Fact 2: Marmots live in underground burrows.

Given the two facts above, answer the question "Why are marmots protected from wild fire?" with the following options: 
- They're in water
 - an external framework
 - water conservation
 - hard outer covering
 - They don't live near fire
 - They're underground
 - They're fireproof
 - important habitats


 

      They're underground   