Copper is strong. Copper is flexible. Copper is a conductor. Copper is an insulator.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which statement best explains the reason that electrical wires are made of copper?
Possibilities:
- Copper is strong.
- Copper is flexible.
- Copper is a conductor.
- Copper is an insulator.

Copper is a conductor.