Q: Fact 1: Wiring requires an electrical conductor. Fact 2: Metals, such as copper wire, are good conductors for carrying electric current. Given the two facts above, what can be used in wiring as a conductor?

Choose your answer from:
A). paper.
B). energy.
C). tube.
D). copper.
E). a prism.
F). photons.
G). leather.
H). light.
The answer is:
D).