An electric filament bulb can be worked from
The main work of an electric filament bulb is to glow when an electric current is passed through the electric filament. The only requirement for glowing of the electric filament in the electric bulb is the electric current. The electric current required to glow the bulb can be supplied from a direct current supply (DC supply), alternating current supply (AC supply) or battery supply.Therefore, the electric current can be worked from DC supply, AC supply and battery supply.
Hence, the correct option is D.
