What kind of material would be classified as a conductor?

A conductor is a material that allows the flow of electrical current with minimal resistance. Metals are typically good conductors due to their atomic structure, which allows electrons to move freely. In a metal, the outermost electrons are not tightly bound to their atoms and can move through the material, facilitating the transfer of electric charge.

For instance, materials like copper and aluminum are often used in electrical wiring because they effectively transmit electricity. This property of metals is a result of their ability to provide a large number of charge carriers that can easily move in response to an electric field. As a result, when considering materials for conducting electricity, metals are always classified as conductors, making them the correct choice in this context.