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: decomposition increases amount of organic matter in soil, Fact2: Fungi are involved in decomposition, as well., Question: What can help increase the amount of organic matter in soil?  (A) Fungi (B) mussels (C) pine (D) worms (E) animals (F) Enzymes (G) solutes (H) trees

A: A
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Q: Fact1: Molecules of DNA are encoded with instructions that tell cells what to do., Fact2: Genes, made of DNA, carry the instructions for building proteins., Question: what do genes carry? (A) pollen (B) Energy (C) calories (D) instructions (E) Chemical energy (F) fat (G) acid (H) colors

A: D
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Q: Fact1: powering an electrical device with a battery requires a path for electricity to flow through a closed circuit, Fact2: An electric circuit is a closed path for electron flow., Question: Electron flow allows a battery to do what? (A) power an electrical device (B) disconnect (C) move to different locations (D) heat is produced (E) matter vibrating (F) photosynthesis (G) fuel cell (H) preventing heat transfer

A:
A
****