Fact 1: Magnetism can cause objects to repel each other.

Fact 2: Aspinning electron is what causes magnetism.

Given the two facts above, answer the question "what causes objects to repel each other?" with the following options: 
- bad smells
 - kinetic energy
 - sticky substances
 - electrically
 - spinning electrons
 - heat energy
 - Electrical energy
 - object size


 

     spinning electrons    