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: Mating is generally preceded by courtship., Fact2: For example, a black rooster and a white hen mate, and the resulting offspring are gray., Question: What can result in offspring? (A) seeds (B) competition (C) courtship (D) travel (E) resistance (F) solitude (G) litter (H) reading

A: C
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Q: 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

A: E
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Q: Fact1: Pollen consists of tiny grains that are the male gametes of plants., Fact2: Pollen grains come from seed bearing plants., Question: what seeds come from male gametes of plants? (A) offspring (B) edible (C) pollinator (D) fusion (E) male (F) red (G) pollen (H) embryos

A:
G
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