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: Pneumonia may be caused by an infection or injury of the lungs., Fact2: Mammals breathe air with lungs., Question: What may be caused by an infection or injury of the organs used to breathe air? (A) Toxicity (B) smoking (C) fertilization (D) pneumonia (E) a broken leg (F) oxygenation (G) Dehydration (H) the skin
[EX A]: D

[EX Q]: Fact1: exercise increases a body 's strength, Fact2: Exercise is more than running and lifting., Question: what increases a body's strength (A) in its arms (B) Through play (C) heat energy (D) joules (E) Riding a bike (F) cancer (G) running and lifting (H) parasites
[EX A]:
G