Answer the following question: Fact 1: Aflashlight requires a source of electricity to produce light. Fact 2: Electric energy is stored in batteries. Given the two facts above, a flashlight requires what to produce light?

Choose your answer from: I. batteries; II. sunlight; III. buttons; IV. calcite; V. coils; VI. adding heat; VII. heat energy; VIII. plastic;
Answer:
I.