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").

Example Input: Fact1: some animals' fur grows thicker for staying warm in the winter, Fact2: During winter, their hollow fur absorbs much heat as they sun themselves., Question: hollow fur keeps animals what (A) fats (B) camouflaged (C) safe (D) warm (E) cooled (F) liquid (G) live (H) from drowning
Example Output: D

Example Input: Fact1: Bile reduces the acidity of food entering from the highly acidic stomach., Fact2: Bile, a fluid made by the liver, is stored in the gallbladder., Question: Fluid that reduces the acidity of food is stored in (A) the throat (B) Microscopic vessels. (C) the rectum (D) the gallbladder (E) chondrocytes (F) the small intestine (G) holding nutrients (H) intestinal
Example Output: D

Example Input: Fact1: an earthquake causes the ground to shake, Fact2: Examples include damage to man-made structures, ground failure and felt shaking., Question: What causes damage to man-made structures? (A) flooding (B) air quality (C) animal crossings (D) earthquakes (E) toxins (F) trees bending (G) influenza (H) Pesticides
Example Output:
D