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: Heterotrophs are living things that cannot make their own food., Fact2: All animals are heterotrophs., Question: what are living things that cannot make their own food? (A) hydrogen (B) clouds (C) animals (D) humans (E) bacteria (F) bushes (G) fungi (H) plants
Example Output: C

Example Input: Fact1: Amphibians have permeable skin that easily absorbs substances from the environment., Fact2: All frogs are amphibians., Question: What has permeable skin? (A) goats (B) alligators (C) animals (D) apples (E) frogs (F) sharks (G) humans (H) snakes
Example Output: E

Example Input: Fact1: Ozone depletion results in higher levels of UV radiation reaching Earth., Fact2: UV radiation causes DNA damage and mutations 3.3., Question: Ozone depletion causes higher levels of which of the following? (A) Sulfur dioxide (B) Greenhouse gases (C) rays or beams (D) chlorofluorocarbons (E) DNA damage and mutations (F) harmful substances (G) direct damage to the lungs (H) wavelengths and photons
Example Output:
E