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: killing microorganisms in food can be used to extend the shelf life of that food, Fact2: Cooking kills the microorganisms., Question: What can extend the shelf life of food? (A) cooking it (B) Enzymes (C) evaporation (D) rays or beams (E) running it under water (F) Proteins (G) seasoning it (H) putting it on a counter
Example Output: A

Example Input: Fact1: Cancer is a disease in which cells divide out of control., Fact2: Cancer is also caused by a mutation., Question: What can mutations lead to in which cells divide out of control? (A) Smoking (B) resistance (C) a disease (D) viruses (E) AIDS (F) bacteria (G) Leptospirosis (H) cigarettes
Example Output: C

Example Input: Fact1: a plants require water for survival, Fact2: Bamboos are vigorous, rugged plants., Question: What requires water for survival? (A) cats (B) the moon (C) cows (D) limestone (E) bamboo (F) pigeons (G) bears (H) sandstone
Example Output:
E