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").
--------
Question: Fact1: All chemical reactions require activation energy to get started., Fact2: Fire is a chemical reaction., Question: What does fire require to get started? (A) an engine (B) activation energy (C) water (D) energy usage (E) direct energy (F) dogs (G) activated almonds (H) adding heat

Answer: B

Question: Fact1: telephones are used for communication by two people by transmitting sound, Fact2: Cell phones are, bottom line, radios with a connection to a telephone company., Question: What are used for two people for communication with sound? (A) cell phones (B) messengers (C) energy (D) megaphones (E) A Greek letter (F) flashlights (G) gramophones (H) electricity

Answer: A

Question: Fact1: force causes the speed of an object to increase, Fact2: Speed is how fast an object is moving., Question: What can increase how fast an object is moving? (A) electrically (B) flow of electrons (C) Standing still (D) Increasing drag (E) Decreasing pressure (F) friction (G) kinetic energy (H) Applying force

Answer:
H