You are presented with the quiz "A bulb requires electrical energy to produce what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "alight bulb requires electrical energy to produce light" and "light is electromagnetic radiation". So, what's the best answer to the question?

Choose your answer from:
[I] heat production
[II] heat is produced
[III] rain or sun shine
[IV] Help plants grow
[V] electromagnetic radiation
[VI] Earth revolving around the sun
[VII] hydrogen and oxygen
[VIII] basic building blocks of life
The answer is:
[V]