Given the task definition and input, reply with output. 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").

Fact1: a flashlight converts chemical energy into light energy, Fact2: Students should describe how the electrical energy from the batteries changed to light energy in the flashlight bulb and then to heat energy that could be felt., Question: A flashlight battery stores what inside? (A) hydrogen and oxygen (B) chemical energy. (C) Calcium carbonate (D) motion (E) electricity (F) heat (G) light (H) objects that have mass
B