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

Fact 2: Drop metal objects such as golf clubs, and backpacks.

Given the two facts above, answer the question "What can cause golf clubs to repel each other?" with the following options: 
- electrically
 - friction
 - layers of fat
 - water
 - fire
 - repellant
 - magnetism
 - heat energy


 

       magnetism  