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

Fact 2: All fish are creatures that swim.

Given the two facts above, answer the question "What that can swim have a centralized nervous system with a brain?" with the following options: 
- ships
 - humans
 - ducks
 - creatures
 - animals
 - water
 - boats
 - fur seals


 

    creatures     