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 an organism becomes too hot then that organism may die, Fact2: Hot sun can bleach flowers., Question: What can kill flowers? (A) Petals (B) Too much sun (C) cancer (D) Pollination (E) burning (F) dry conditions (G) Pesticides (H) Quality soil
Example Output: B

Example Input: Fact1: Active immunity results when an immune response to a pathogen produces memory cells., Fact2: Pathogens are germs that cause disease., Question: Active immunity is when an immune response occurs after a germ produces what? (A) harmful substances (B) bioaerosols (C) rapid expansion (D) Allergies (E) anemia (F) it needs them (G) Chemical energy (H) memory cells
Example Output: H

Example Input: Fact1: Mutation creates new genetic variation in a gene pool., Fact2: Fertilization increases genetic variation., Question: The gene pool expands through fertilization and: (A) offspring (B) agriculture (C) mutation (D) babies (E) seeds (F) zygotes (G) relocation (H) competition
Example Output:
C