You are presented with the question "what is magnetized by electricity?" and the following answer choices: 
- core
 - cars
 - metal
 - bamboo
 - biceps
 - bushes
 - LEDs
 - apples

Now knowing that amagnet moving in a coil of copper wire can cause an electric current and electricity is passed through the copper to magnetize the core, choose the best answer.


 

 core        