You are presented with the quiz "What does an incandescent light bulb use to convert electricity into light " 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "an incandescent light bulb converts electricity into light by sending electricity through a filament" and "standard filaments are made of tungsten". 

So, what's the best answer to the question?


 

    Tungsten       