Detailed Instructions: In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Q: Fact1: a flashlight requires a source of electricity to produce light, Fact2: Batteries are a better source of DC electricity., Question: what does a flashlight require to produce light? (A) condensation (B) energy (C) direct energy (D) batteries (E) sunlight (F) h2o (G) energy usage (H) heat energy
A:
D