You are presented with the question "What is carried toward the heart?" and the following answer choices: 
- flow of electrons
 - kinetic energy
 - deoxygenated blood
 - the body's largest organ
 - Electrical energy
 - energy of moving objects
 - refraction of light
 - electromagnetic energy

Now knowing that veins generally carry deoxygenated blood and veins push blood toward the heart, choose the best answer.


 

   deoxygenated blood      