You are presented with the question "What is the force that causes objects to push or attract each other?" and the following answer choices: 
- speed
 - gravity
 - friction
 - Energy.
 - heat energy
 - magnetism
 - quadriceps
 - flotation

Now knowing that magnetism can cause objects to repel each other and magnetism is the force where objects are attracted or repelled to one another, choose the best answer.


 

      magnetism   