Definition: 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").
Input: Fact1: decomposition increases amount of organic matter in soil, Fact2: Bacteria initiate decomposition of plants., Question: What would increase the amount of organic matter in soil? (A) coal (B) fossil fuels (C) Pesticides (D) mussels (E) bacteria (F) nutrients (G) burning (H) shrub beds
Output:
E