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: when a body of water receives more water than it can hold , a flood occurs, Fact2: Flood probability is based on past floods., Question: How do we determine the probability of receiving more water than a body can hold? (A) evaporation (B) climate (C) The past (D) watershed (E) Dilution (F) energy usage (G) Temperature (H) salinity
Example Output: C

Example Input: Fact1: eyes are used for seeing by animals by sensing light, Fact2: Goats are four legged animals., Question: what uses eyes for seeing by sensing light? (A) pigeons (B) goats (C) potatoes (D) tigers (E) plants (F) h2o (G) humans (H) bears
Example Output: B

Example Input: Fact1: Specialization occurs when competing species evolve different adaptations., Fact2: Animals and plants evolve together, adapting to environmental conditions., Question: what happens when animals and plants evolve to environmental conditions? (A) survival (B) rapid expansion (C) ascension (D) extinction (E) revolution (F) adding heat (G) Temperature changing (H) specialization
Example Output:
H