The correct answer to this question is the Conductor. A conductor is any material that allows electricity, heat, or sound to flow through it. When it comes to electrical conductors, metals are the main examples of those.
Metals like iron and copper are some of them, and they are used to make wires. Another conductor for electricity is plasma, and it can be used for a number of things like lasers.
While there are conductors, there are also semiconductors. These have electricity that flows through them, but they do not flow as well as conductors do. These materials are often very cold and have no resistance to electricity.