Question

Which electric component provides energy to the circuit of a flashlight?

Answer 1

"Battery"  provides energy to the circuit of a flashlight

In short, Your Answer would be Option A

Hope this helps!

Answer 2

The flow of the electricity is activated when you push the switch into the "on" position, giving you light. The flow of electricity is broken when the switch is pushed into the "off" position, thus turning off the light.