You are presented with the question "Veins generally carry what type of blood?" and the following answer choices: 
- oxygen
 - porous
 - blue
 - H 2 O
 - a path
 - SO2
 - liquid
 - nektar

Now knowing that veins generally carry deoxygenated blood and oxygenated blood is red, deoxygenated blood is blue, choose the best answer.


 

   blue      