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: lakes are formed by precipitation and runoff, Fact2: Runoff from precipitation is a natural part of the water cycle., Question: What are some of the steps that forms a lake? (A) decomposition and respiration (B) storing water (C) photosynthesis and solar energy (D) near the shoreline (E) precipitation and run-off (F) perspiration and excretion (G) The area was once underwater (H) At the peak of a mountain
Example Output: E

Example Input: Fact1: Animals can communicate with sounds, chemicals, or visual cues., Fact2: Unlike animal communication, properly human communication is abstract and linguistic in nature., Question: Which of the following do humans not use to communicate? (A) chemicals. (B) limb amputation (C) emissions (D) sweating (E) smoking pipes (F) dry conditions (G) visible energy (H) heat or cold
Example Output: A

Example Input: Fact1: Cnidarians are invertebrates such as jellyfish and corals., Fact2: Invertebrates have no vertebrae or backbone., Question: Jellyfish and corals have no what? (A) underwater life (B) movement (C) flagellum or tiny hairs (D) bodies (E) last stage before adulthood (F) antigens that cause allergy (G) vertebrae or backbone (H) nuclear membrane
Example Output:
G