You are presented with the question "what can be harmed to cause its population to decrease?" and the following answer choices: 
- death
 - snail
 - squids
 - toads
 - elms
 - Injury
 - goat
 - clams

Now knowing that harming an animal species causes that animal 's population to decrease and goats are four legged animals, choose the best answer.


 

       goat  