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: Some viruses can cause cancer., Fact2: Cervical cancer is caused by a virus, the human papaloma virus., Question: What is responsible for cervical cancer? (A) lmestone (B) Hemoglobin (C) alleles (D) A virus (E) chemicals (F) cigarettes (G) ovaries (H) smoking
Example Output: D

Example Input: Fact1: Plants are the major producers in terrestrial biomes., Fact2: Grasses are very distinctive plants., Question: What is a producer in terrestrial biomes? (A) food (B) Oak (C) mammals (D) flowers (E) earth (F) grass (G) Trees (H) mushrooms
Example Output: F

Example Input: Fact1: an aquatic animal requires great amounts of water to survive, Fact2: Clean water is also essential to aquatic life., Question: What does a water animal need great amounts of to survive? (A) Au (B) sodium (C) oxygen (D) gills (E) water (F) warmth (G) Fe (H) H
Example Output:
E