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: 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: Cells are organized into tissues, and tissues form organs., Fact2: Major organs, including the kidneys and liver, begin to grow., Question: what forms the liver? (A) bile (B) alcohol (C) stones (D) animals (E) ovaries (F) cells (G) meat (H) humans
[EX A]: F

[EX Q]: Fact1: gravity pulls objects towards planets, Fact2: Gravity is the force that keeps planets in orbit around the sun., Question: What pulls objects around the sun? (A) Oxygen (B) cycles (C) wind (D) Energy. (E) energy (F) Gravity (G) h2o (H) Atmosphere
[EX A]:
F