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: Hair is a fiber that is found only in mammals., Fact2: Hair has turned auburn red., Question: What is a fiber found only in mammals? (A) Something that can be auburn (B) They have thick fur (C) Something that is self-aware (D) with their fur (E) To keep their body heat. (F) it helps plants in growing (G) it keeps an organism warm (H) Something that comes in a bundle of fibers
Output:
A