You are presented with the question "What is used in order for Maglev trains to function?" and the following answer choices: 
- coal
 - Energy.
 - electrically
 - energy
 - magnetism
 - diesel
 - tow rope
 - power

Now knowing that magnetism can cause objects to repel each other and the maglev trains are pushed and speeded up by the fact that like poles attract and unlike poles repel, choose the best answer.


 

     magnetism    