Detailed Instructions: 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: Organic matter is the plant and animal residue in the soil at various stages of decomposition., Question: What increases the amount of plant and animal residue in soil? (A) Decomposition (B) Warm temperatures (C) fossil fuels (D) Pesticides (E) nutrients (F) evaporation (G) Wet weather (H) Living creatures
A:
A