Which of the following part gives off light in an electric bulb?

• In a light bulb, there is a small thin wire with two bigger wires holding it up. This wire is called a filament. 
• They are generally made up of tungsten.
• Due to the heating effect of electric current, when an electric current is passed through the filament having high electrical resistance, it becomes so hot that it begins to glow.

Therefore, we can say that the filament is the part of the electric bulb that gives off light.