The filament of an electric bulb is made of

The correct answer is C. Tungsten.

Tungsten is a very strong metal that can withstand high temperatures. It is also a good conductor of electricity. These properties make it ideal for use in the filament of an electric bulb.

Carbon is a good conductor of electricity, but it is not strong enough to withstand the high temperatures inside an electric bulb. Aluminium is a good conductor of electricity and is strong enough to withstand high temperatures, but it is not as good as tungsten at conducting electricity. Nickel is a good conductor of electricity and is strong

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