You are presented with the question "Fins nearly as long as what can be used to move through water?" and the following answer choices: 
- most cephalopods
 - the rest of the body
 - animals with backbones
 - the eye of a needle
 - an organism's body
 - increases a body's strength
 - the body of water
 - the body of space

Now knowing that along tail can be used to move through water by an animal and all thresher sharks have tail fins nearly as long as the rest of the body, choose the best answer.


 

  the rest of the body       