Metals are used in many products because of the characteristic properties that most metals share. Which properties of the metal tungsten make it useful in the thin, glowing filaments of light bulbs?

A light-bulb filament must be drawn into a thin wire, carry electric current, and get hot enough to glow without melting. Tungsten is ductile, electrically conductive, and has a very high melting point, so it has all three useful properties in choice C. Luster and color do not explain why it works as a filament.

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