Answer the following question given this paragraph: 

Magnetism produced by electricity is called electromagnetism . Today, electromagnetism is used in many electric devices. However, until electromagnetism was discovered, scientists thought that electricity and magnetism were unrelated. A Danish scientist named Hans Christian Oersted (pictured in the Figure below ) changed all that. He made the important discovery that electric current creates a magnetic field. But like many other important discoveries in science, Oersted’s discovery was just a lucky accident.


Q: What magnetism is produced by electricity?

 Choices:

- excitation

- diffusion

- Charges

- electromagnetism

A:
electromagnetism
