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: if a neutral atom loses an electron then an atom with a negative charge will be formed, Fact2: If an atom loses an electron, it is then positive., Question: what can an atom be? (A) Energy. (B) energy (C) microscopic (D) dangerous (E) small (F) nucleus (G) an object (H) negative
Example Output: H

Example Input: Fact1: Active immunity results when an immune response to a pathogen produces memory cells., Fact2: Vaccination is Active Acquired Immunity., Question: What results when an immune response to a pathogen produces memory cells? (A) anemia (B) vaccination (C) kill them (D) competition (E) lie detectors (F) rapid expansion (G) killing insects (H) it needs them
Example Output: B

Example Input: Fact1: Ribosomes are small organelles where proteins are made., Fact2: Ribosomes are assembled inside the nucleus., Question: In what are proteins made? (A) food (B) water (C) meat (D) bacteria (E) calcium (F) nucleus (G) animals (H) Animal fur
Example Output:
F