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: Mollusks have a circulatory system with one or two hearts that pump blood., Fact2: An abalone is a shellfish or mollusk., Question: What has a circulatory system with one or two hearts that pump blood? (A) a fish (B) sharks (C) abalone (D) elephants (E) humans (F) crocodiles (G) giraffes (H) fur seals
Example Output: C

Example Input: Fact1: Annelids have the amazing capacity to regrow segments that break off., Fact2: Annelids have closed circulatory systems., Question: what kind of circulatory system can some segmented animals have? (A) organ (B) insects (C) made (D) warm (E) three (F) complex (G) closed (H) epidermal
Example Output: G

Example Input: Fact1: disease-causing microbes have a negative impact on the body, Fact2: Each human body is unique., Question: Disease causing microbes have what type of impact on humans? (A) toxins (B) neutral (C) negative (D) Roundworms (E) Annelids (F) positive (G) heterotrophs (H) beneficial
Example Output:
C