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").

[EX Q]: Fact1: keeping food cold is used for keeping food fresh, Fact2: A refrigerator that keeps food cold., Question: What is a refrigerator used for? (A) Electrical energy (B) A place to hang magnets (C) Cooling your home (D) staying warm (E) A doorstop (F) electricity (G) energy usage (H) Keeping food fresh
[EX A]: H

[EX Q]: Fact1: Bone provides protection for soft tissues and internal organs., Fact2: Antlers are true bones and are composed of calcium and phosphorous., Question: What provides protection for soft tissues and internal organs? (A) bacteria (B) Veins and arteries. (C) Fully cooking the oysters (D) layers of fat (E) calcium and phosphorous (F) water (G) peachleaf willow (H) the trachea
[EX A]: E

[EX Q]: Fact1: skin is used for breathing air by frogs, Fact2: Frogs breathe with their lungs and skin., Question: What do frogs breathe with? (A) feet (B) air (C) triceps (D) movement (E) oxygen (F) keratin (G) gills (H) lungs
[EX A]:
H