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: breaking apart rocks can cause debris, Fact2: Examples of such rock include sandstone and shale ., Question: What can cause debris? (A) breaking apart sandstone (B) some invertebrates (C) breaking apart air (D) remains of prehistoric life (E) exposure to cold (F) breaking apart clouds (G) breaking apart water (H) forest is destroyed
Example Output: A

Example Input: Fact1: Cells are the basic units of the structure and function of living things., Fact2: Tigers are the largest of the living cats., Question: Cells are the basic units of the structure and function of what? (A) water (B) mammals (C) ice (D) tigers (E) animals (F) humans (G) plants (H) the Sun
Example Output: D

Example Input: Fact1: Marine species live mainly in shallow coastal waters., Fact2: Many marine species are used for medical research., Question: what are many organisms found in shallow coastal waters used for? (A) heat produced (B) survival (C) surf boards (D) density (E) heat energy (F) Animal survival (G) shoes (H) medical research
Example Output:
H