Fact 1: Mollusks have a circulatory system with one or two hearts that pump blood.

Fact 2: Interestingly, a squid is also a mollusk.

Given the two facts above, answer the question "What does a squids circulatory system pump?" with the following options: 
- Mucus
 - Air
 - Water
 - Energy
 - Blood
 - Energy.
 - heat
 - oxygen


 

     Blood    