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: Plants use cellulose for their cell walls., Fact2: Basically, fiber is cellulose ., Question: What is made from cell walls? (A) water (B) blood (C) cells (D) sugar (E) a path (F) fiber (G) moss (H) Carbon
A:
F