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: a greenhouse is used to protect plants from the cold, Fact2: Plants are very easily raised from seed, sown in a cold greenhouse from February to April., Question: What does a greenhouse protect plants from to help them grow easily? (A) death (B) hotness (C) Winter (D) fronts (E) heat (F) drought (G) rain (H) chill

A: H
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Q: Fact1: Evolution is a change in the characteristics of living things over time., Fact2: Evolution relies on random chance acts to cause mutations., Question: What causes changes in characteristics of living things over time? (A) mutations (B) science (C) parents (D) environment (E) light energy (F) news (G) alleles (H) animals

A: A
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Q: Fact1: skin is used for protecting the body from harmful substances, Fact2: Eyes and skin are the critical organs., Question: What are used for protecting the body from harmful substances? (A) critical organs (B) body critics (C) fur and fat (D) protective bony armor (E) redundant organs (F) layers of fat (G) sea urchins (H) solar waves

A:
A
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