USATestPrep: For years only metal was considered conductive. Now our understanding of atom and molecular level structure allows to us consider a broader range of materials as conductive. Describe how conductive polymers and metals are similar.

A) Both materials share electrons in a similar way.

B) Electrons can move freely through both materials.

C) The ratio of protons to electrons in the materials.

D) The neutrality displayed the materials is similar.