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: creating paper requires cutting down trees, Fact2: Deforestation takes place when trees are cut down in the rainforest., Question: What can cause deforestation? (A) Planting flowers (B) Creating paper (C) Greenhouse gases (D) Filtering water (E) Greenhouse gasses (F) Cutting grass (G) Pesticides (H) Pollution
Example Output: B

Example Input: Fact1: Most mollusks have shells., Fact2: All mollusks have soft bodies., Question: What can shells protect? (A) fronts (B) animals (C) soft bodies (D) coastlines (E) fur (F) blood (G) critical organs (H) hard bodies
Example Output: C

Example Input: Fact1: Sponges are a source of food for many species of fish., Fact2: Sponges are also keystone species., Question: What are a source of food for many fish species? (A) layers of fat (B) bird species (C) human species (D) keystone species (E) Organic compounds (F) barnacles (G) gastropod shells (H) species of deer
Example Output:
D