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: Consider Input: Fact1: Rivers are usually larger than streams., Fact2: Watersheds are creeks, streams and rivers., Question: What is a river also? (A) storing water (B) loose soil (C) dangerous (D) fertile (E) more abundant (F) watershred (G) body water (H) kinetic

Output: F


Input: Consider Input: Fact1: Chromosomes are coiled structures made of DNA and proteins., Fact2: DNA is deoxyribonucleic acid., Question: chromosomes are coiled structures made of proteins and what? (A) solid, liquid, gas (B) density (C) Something that causes allergies (D) deoxyribonucleic acid (E) It helps them survive (F) inheritance (G) blood cells (H) allow growth

Output: D


Input: Consider Input: Fact1: Fingernails prevent injury by forming protective plates over the ends of the fingers., Fact2: Fingernails are also made of keratin., Question: Protective plates over the ends of the fingers are made of what? (A) keratin (B) tissue (C) a metal (D) bone (E) iron oxide (F) tiny hairs (G) antigens (H) Cartilage


Output: A