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: Wings are part of the exoskeleton and attached to the thorax., Fact2: Insect wings are attached to the dorsal side of their thorax., Question: What side of an insect are wings attached to? (A) white (B) dorsal (C) protected (D) abdomen (E) elytra (F) three (G) strong (H) tail
Example Output: B

Example Input: Fact1: Cell division is how organisms grow and repair themselves., Fact2: Cell division is by mitosis ., Question: What is required by division? (A) voltage (B) Microscope (C) loose soil (D) Energy. (E) Energy (F) relocation (G) warmth (H) mitosis
Example Output: H

Example Input: Fact1: Food is easier to chew because it is moistened by saliva from the salivary glands., Fact2: Besides, saliva contains digestive enzymes ., Question: What do digestive enzymes make easier to chew? (A) water (B) food (C) 86400 (D) sunlight (E) herbs (F) weater (G) saliva (H) fat
Example Output:
B