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").

[EX Q]: Fact1: nuclear reactions in stars causes stars to produce light, Fact2: An intense bright light produces a glare., Question: What in stars cause stars to produce bright glares (A) energy of moving objects (B) nuclear reactions (C) direct energy (D) shining suns (E) bright activity (F) Chemical energy (G) moving moons (H) heat energy
[EX A]: B

[EX Q]: Fact1: Mutualism is a symbiotic relationship in which both species benefit., Fact2: Dogs and humans are symbiotic species., Question: what exists between dogs and humans? (A) mutualism (B) gravity (C) communication (D) antigens (E) several genes (F) space between (G) electrons (H) german shepherd
[EX A]: A

[EX Q]: Fact1: a stove is used for cooking by generating heat, Fact2: Metabolic reations generate heat., Question: What process can help heat up a stove? (A) Movement of an air mass (B) Electrical (C) Fuel cells (D) Electrical energy (E) kinetic energy (F) direct energy (G) Chemical energy (H) metabolic reaction
[EX A]:
H