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: 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: Ejaculation occurs when muscle contractions propel sperm from the epididymes., Fact2: Male gametes are called sperm., Question: What is it called when male gametes are propelled because of muscle contractions? (A) competition (B) rapid expansion (C) intercourse (D) thrusting (E) a wave (F) reproductions (G) A Greek letter (H) ejaculation
Example Output: H

Example Input: Fact1: Ancestors of hagfish are thought to have been the earliest vertebrates., Fact2: Hagfish and sharks are both isosmotic with their saline environments., Question: what are sharks? (A) vertebrates (B) bears (C) cold blooded (D) reptile (E) whales (F) their young (G) coelenterates (H) saves lives
Example Output:
A