Question

unlike copper, wood and plastic are poor ______ of electricity. conductors developers dischargers insulators

Explanation:

• Conductors: Materials that allow electricity to flow through them easily. Copper is a good conductor, while wood and plastic are poor conductors.
• Developers: This term is not related to the flow of electricity.
• Dischargers: Refers to something that releases or gets rid of a charge, not relevant here.
• Insulators: Materials that do not allow electricity to flow through them. But the sentence says "unlike copper" (a conductor), so we need the term for poor conductors, not insulators.

Answer:

A. conductors