You are presented with the question "what can sponges live in?" and the following answer choices: 
- crust
 - salt water
 - mouth of rivers
 - mantle
 - water
 - Bodily water
 - stars
 - loose soil

Now knowing that adult sponges are sessile and sponges are sessile animals that live in fresh or salt water, choose the best answer.


 

  salt water       