You are presented with the question "What animal can cause a lake to form?" and the following answer choices: 
- trout
 - Beavers
 - Clams
 - salmon
 - Lake Trout
 - Sea Otters
 - Dam
 - mussels

Now knowing that damming a river can cause a lake to form and the beavers live on this side, and create dams, choose the best answer.


 

  Beavers       