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: microorganisms can cause infections, Fact2: Bacteria are microorganisms that exist everywhere., Question: What can cause infection? (A) bacteria (B) seeds (C) influenza (D) disease (E) horses (F) viruses (G) chickenpox (H) bladders
Example Output: A

Example Input: Fact1: Birds evolved from a group of bipedal dinosaurs called theropods., Fact2: All hawks are birds., Question: What evolved from a group of bipedal dinosaurs called theropods? (A) alpacas (B) bacteria (C) hawks (D) vision (E) humans (F) animals (G) mammals (H) viruses
Example Output: C

Example Input: Fact1: Plants use cellulose for their cell walls., Fact2: Vegetation includes shrubs and cactus plants., Question: what uses cellulose for their cell walls? (A) cactus (B) Oak (C) Conifers (D) Trees (E) h2o (F) flowers (G) insects (H) humans
Example Output:
A