You are presented with the question "What does the animal that burrows to help aerate soil have?" and the following answer choices: 
- Energy
 - Five hearts
 - critical organs
 - resistance
 - Energy.
 - food and shelter
 - fur and fat
 - four limbs

Now knowing that earthworm burrows help aerate soil, which is also good for plants and an earthworm has five hearts, choose the best answer.


 

  Five hearts       