Q: 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").
Fact1: decomposition increases amount of organic matter in soil, Fact2: Composting is simply the natural decomposition of organic matter., Question: What increases the amount of organic matter in soil? (A) raining (B) shedding (C) mussels (D) raking (E) herbicide (F) fossil fuels (G) green manures (H) composting
A:
H