Given the task definition and input, reply with output. 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: Fungi are the only organisms that can decompose wood., Fact2: Wood used for pulp and lumber., Question: Fungi are the only organism that can decompose what? (A) birds (B) pine (C) fossils (D) matter (E) eggs (F) lumber (G) Conifers (H) millipedes
F