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: Sponges have specialized cells called collar cells., Fact2: Flagellum of collar cell cause current to pass over collar and food is collected., Question: Which aspect of a sponge's cells allow it to collect food? (A) the cervix (B) teeth (C) flagellum (D) cartilage (E) plasma (F) osculum (G) tissue (H) potassium
Example Output: C

Example Input: Fact1: if an animal lives under ground then that animal will be protected from a wild fire, Fact2: Many squirrels live in burrows under the ground instead of in the trees., Question: Many squirrels are protected from what by their burrows (A) disease (B) wild fire (C) A virus (D) Wet weather (E) sun's heat (F) cold air (G) Winter (H) deforestation
Example Output: B

Example Input: Fact1: Skin color is another polygenic trait., Fact2: Pigment cells are what give color or tint to the skin., Question: What is another example of a polygenic trait? (A) Type O (B) Cladistics (C) Rolex (D) Therapsids (E) pigment (F) amebiasis (G) Pelycosaur (H) orange
Example Output:
E