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: creating paper requires cutting down trees, Fact2: Trees only grow to be cut down., Question: What needs to grow for paper to be made? (A) paper (B) books (C) trees (D) birds (E) grass (F) flowers (G) fibers (H) plants
A:
C