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: conserving water can be used for survival in a dry environment, Fact2: We learned about desert plants and how they adapt themselves to the hot dry desert environment so they can survive., Question: Plants can conserve water in order to survive where? (A) our planet (B) in a vacuum (C) in the desert (D) Earth's atmosphere (E) In the winter (F) in a laboratory (G) on the moon (H) forest is destroyed
Example Output: C

Example Input: Fact1: Many consumers feed at more than one trophic level., Fact2: Consumers are heterotrophs that feed on tissues of other organisms., Question: What may eat other organisms at more than one trophic level? (A) barnacles (B) chickens (C) fur seals (D) humans (E) heterotrophs (F) mammals (G) animals (H) rabbit
Example Output: E

Example Input: Fact1: Roundworms reproduce sexually., Fact2: Nematodes are millimeter-sized roundworms., Question: Nematodes reproduce how? (A) root growth (B) heat or cold (C) pollen (D) electrically (E) sexually (F) seeds (G) survive (H) a cuticle
Example Output:
E