What type of conductors are drawn from a copper-clad aluminum rod with a copper-bonded core?

The correct answer identifies the type of conductors that contain both copper and aluminum materials. In this case, the conductors are specifically referred to as Copper-Clad Aluminum Conductors because they are made from a core of aluminum that is coated with a layer of copper. This design combines the lightweight and lower cost of aluminum with the improved conductivity and corrosion resistance of copper.

Copper-clad aluminum conductors are commonly used in applications where the advantages of both materials are needed, such as in certain electrical installations where weight savings are beneficial, but a good degree of conductivity and corrosion resistance is also required. This makes these conductors distinct from others that consist solely of either aluminum or copper.

The other answer choices refer to different conductor types. Aluminum conductors solely comprise aluminum without any copper cladding. Plastic-coated conductors indicate a covering material that does not describe the core material composition. Pure copper conductors are made entirely of copper, lacking the aluminum component present in copper-clad aluminum conductors.