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: Then, in 1897, a man named David Misell invented the flashlight., Question: What converts chemical energy into light energy? (A) A compound that donates proton (B) deadly and devastating (C) the simplest of green plants (D) electron transport (E) Something invented by David Misell (F) it helps plants in growing (G) the production of heat (H) hydrogen and oxygen
E