Answer the following question: Aflashlight requires a source of electricity to produce light, and flashlights provide the safest emergency lighting source. Given these facts, what requires a source of electricity to produce light among the following options: - Broken light bulb. - The sun. - basic building blocks of life - an electron microscope - The source magazine. - algae and plants - the simplest of green plants - An emergency lighting source.
Answer:
An emergency lighting source.