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: Ejaculation occurs when muscle contractions propel sperm from the epididymes., Fact2: Male orgasm and ejaculation are inhibited., Question: In the male orgasm, where is sperm propelled from? (A) seeds (B) pollen (C) distance (D) organ (E) sensory neurons (F) direct energy (G) epididymes (H) electrically
Example Output: G

Example Input: Fact1: Ancestors of hagfish are thought to have been the earliest vertebrates., Fact2: Property of ancestors and forefathers can only be legally inherited by sons., Question: Forefathers of what kind of fish are thought to be the earliest vertebrates? (A) hagfish (B) Pelycosaur (C) fish (D) angiosperm (E) adult (F) Therapsids (G) marine (H) aquatic
Example Output: A

Example Input: Fact1: keeping food cold is used for keeping food fresh, Fact2: The Purpose of Refrigeration The fundamental reason for having a refrigerator is to keep food cold., Question: What is an important function of a refrigertor? (A) cool the kitchen (B) adding heat (C) keep meat and vegetables separate (D) keep food fresh (E) heat energy (F) staying warm (G) freeze wine (H) Electrical energy
Example Output:
D