Fact 1: Fish have a circulatory system with a two-chambered heart.

Fact 2: Trout is an extremely versatile fish.

Given the two facts above, answer the question "what have a circulatory system with a two-chambered heart?" with the following options: 
- toads
 - Birds
 - trout
 - animals
 - sharks
 - pan
 - mammals
 - salmon


 

   trout      