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: a greenhouse is used to protect plants by keeping them warm, Fact2: Flower size varies by plant., Question: How does a greenhouse protect flowers? (A) keeps them away from the sun (B) keeps them warm (C) keeps them out of soil (D) an external framework (E) it needs them (F) keeps them cold (G) rays or beams (H) by indirect light
Example Output: B

Example Input: Fact1: Cancer is a disease in which cells divide out of control., Fact2: Chemotherapy works on cells that are dividing., Question: What helps stop cells multiplying in cancer? (A) the skin (B) Honey (C) sweating (D) Chemotherapy (E) H2O (F) Chemical energy (G) Titanium (H) bioaerosols
Example Output: D

Example Input: Fact1: smoking causes direct damage to the lungs, Fact2: Cigar smoking is on the rise., Question: what causes direct damage to the lungs? (A) breathing (B) oxygen (C) influenza (D) parasites (E) cigars (F) germs (G) steroids (H) respiring
Example Output:
E