Fact 1: An aquatic animal requires great amounts of water to survive.

Fact 2: Beavers are primarily aquatic animals.

Given the two facts above, answer the question "what requires great amounts of water to survive" with the following options: 
- sunlight
 - beavers
 - octopus
 - mussels
 - trout
 - carbon
 - oxygen
 - amphibians


 

  beavers       