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").
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Question: Fact1: the emission of sulfur dioxide causes acid rain, Fact2: The sulfur dioxide is converted into sulfuric acid., Question: what causes acid rain? (A) gases (B) rainfall (C) Pollution (D) fossil fuels (E) emissions (F) vehicles (G) burning (H) wind

Answer: E


Question: Fact1: Heterotrophs are living things that cannot make their own food., Fact2: All animals are heterotrophs., Question: what are living things that cannot make their own food? (A) hydrogen (B) clouds (C) animals (D) humans (E) bacteria (F) bushes (G) fungi (H) plants

Answer: C


Question: Fact1: when the season changes , the amount of daylight will change, Fact2: Seasons occur due to the tilt of the Earth's axis and the orbit of the Earth around the Sun., Question: What causes the amount of daylight to change? (A) The bending of a ray of light (B) The tilt of Earth's axis (C) movement of tectonic plates (D) The tilt of the sun's axis (E) The brightness of the sun (F) Time change (G) Electrical energy (H) global warming

Answer:
B