If aporcupine will extend it's quills when a fisher displays threatening behavior, then what will a porcupine do when it feels a fisher is displaying threatening behavior?

Answer choices:
- bite the fisher
 - decreases its bodily water
 - Change colors
 - extend it's quills
 - kill them
 - the body's largest organ
 - back away
 - fight the fisher

 

    extend it's quills      