You are presented with the question "what causes objects to repel each other?" and the following answer choices: 
- bad smells
 - kinetic energy
 - sticky substances
 - electrically
 - spinning electrons
 - heat energy
 - Electrical energy
 - object size

Now knowing that magnetism can cause objects to repel each other and aspinning electron is what causes magnetism, choose the best answer.


 

     spinning electrons    