You are presented with the quiz "What direction does something that has oxygen-rich blood go?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "arteries generally carry oxygen-rich blood" and "arteries carry blood away from the heart". So, what's the best answer to the question?
Options: 1. mouth of rivers; 2. the body's largest organ; 3. move to different locations; 4. Earth orbiting the Sun; 5. Move to another area; 6. to move people; 7. animal transport; 8. Away from the heart;
Answer:
8.