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: 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: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins., Fact2: DNA acts as the store of genetic information., Question: What does DNA store? (A) information (B) Energy. (C) Chemical energy (D) voltage (E) calories (F) water (G) Energy (H) food
Example Output: A

Example Input: Fact1: poisonous darts are used for defense by sea anemones, Fact2: To protect themselves corals have evolved a variety of defenses., Question: What do sea anenomes use poisonus darts for? (A) mitosis (B) sexual reproduction (C) damaging (D) protection (E) counterop (F) safe operation (G) storage (H) Communication
Example Output:
D