A student is building a simple circuit with a battery, light bulb, and copper wires. When she connects the wires to the battery terminals, the light bulb does not light up. Which of the following could explain why the bulb does not light?
A.There is no energy source.
B.The circuit is open.
C.This circuit is too simple to light up a light bulb.
D.Copper wires do not conduct electric current.