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: glass cause refraction of light, Fact2: Refraction Refraction is the bending of light rays., Question: Glass causes the _ of light (A) intensification (B) bending (C) photons (D) a wave (E) Pollution (F) blocking (G) heat (H) amplification
Example Output: B

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: lack of moisture in the air causes low amounts of rainfall, Fact2: Humidity is moisture in the air., Question: lack of _  causes low amounts of rainfall (A) drought (B) humidity (C) heat (D) Dehydration (E) less water (F) flooding (G) oxygen (H) nitrogen
Example Output:
B