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: vein deposits of gold and silver are formed by igneous intrusion, Fact2: Intrusive igneous rocks account for sections of higher elevation., Question: vein deposits of gold and silver are formed where? (A) loose soil (B) aqueous solution (C) graptolites (D) tectonic plates coliding (E) higher elevations (F) mountain sources (G) flow of electrons (H) In sediment
Example Output: E

Example Input: Fact1: fossils are formed when layers of sediment cover the remains of organisms over time, Fact2: Plants and animals are organisms., Question: What forms when plants are covered in layers of sediment over time? (A) Conifers (B) watershred (C) fossils (D) H2O (E) Echinoids (F) bubbles (G) loose soil (H) bones
Example Output: C

Example Input: Fact1: Bone provides protection for soft tissues and internal organs., Fact2: Bones provide an outer shell to protect our internal organs., Question: An animal's outer shell protects internal organs and: (A) food and shelter (B) epidermal (C) Epidermis (D) all matter (E) soft tissues (F) alveoli (G) warmth (H) layers of fat
Example Output:
E