100 ! need in this diagram, there is no battery. which describes how this lightbulb lights? a. a mechanical force turns the rod. this electrifies the coil and generates the electric current that runs through the wires to power the lightbulb. b. an electrical force turns the rod. this magnetizes the coil and generates the electric current that runs through the wires to power the lightbulb. c. a mechanical force turns the rod. this magnetizes the coil and generates the magnetic field that runs through the wires to power the lightbulb. d. a mechanical force turns the rod. this magnetizes the coil and generates the electric current that runs through the wires to power the lightbulb.