Fact 1: Fish have a centralized nervous system with a brain.

Fact 2: Fish include trout and other fish.

Given the two facts above, answer the question "What has a centralized nervous system with a brain?" with the following options: 
- Birds
 - pan
 - virus
 - sharks
 - Man
 - trout
 - leech
 - parasite


 

      trout   