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: harming an animal species has a negative impact on the population size of that species, Fact2: Sometimes hunting can impact animal populations., Question: What does hunting do to a species? (A) Plant growth is reduced (B) Decreases population (C) protect them (D) cause their death (E) Creates demand for the species (F) Strengthens the species (G) massive damage (H) Increases population
Example Output: B

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: Flowing water can slowly dissolve carbon in sedimentary rock., Fact2: Limestone is a type of sedimentary rock., Question: Flowing water from a mountain can dissolve carbon in what kind of rock? (A) magma (B) loose soil (C) loose dirt (D) precipitation (E) pumice (F) limestone (G) wind and rain (H) andesite
Example Output:
F