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: Courtship is behavior that is intended to attract a mate., Fact2: Complex courtship rituals precede mating., Question: What are behavior that is intended to attract a mate? (A) a doorbell (B) firm hugs (C) Complex rituals (D) Riding a bike (E) Behaviour modifications (F) Magnets (G) honeybees (H) Friendship
Example Output: C

Example Input: Fact1: Some arthropods have special excretory structures., Fact2: All insects are arthropods., Question: what sometimes has special excretory structures? (A) insects (B) bees (C) a fish (D) barnacles (E) animals (F) carbon (G) feces (H) humans
Example Output: A

Example Input: Fact1: when a hemisphere is tilted away from the sun , that hemisphere receives less direct sunlight, Fact2: With less sunlight, the forest is cooler and wetter., Question: What effect will a hemispheric tilt away from the sun have on the forests there? (A) higher heat (B) more sunlight (C) competing for resources (D) massive damage (E) deforestation (F) colder and wetter (G) further north (H) Physical weathering
Example Output:
F