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 laser is used for producing light, Fact2: Light seems to travel in rays or beams., Question: what is a laser used for producing? (A) Electrical energy (B) electricity (C) electron microscope (D) density (E) light bulbs (F) rays or beams (G) sounds (H) hydrogen and oxygen
A:
F