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: Loss of ozone has created an ozone hole over Antarctica., Fact2: Antarctica's ozone layer is threatened by depletion., Question: What can loss of ozone lead to? (A) irritants (B) bad weather (C) Car accidents (D) ozone hole (E) rain (F) A hurricane (G) stormy weather (H) destroyed crops
Example Output: D

Example Input: Fact1: Pneumonia may be caused by an infection or injury of the lungs., Fact2: Lung injuries are treated with bronchodilatory treatment., Question: What treatment can be used in treating pneumonia? (A) the respiratory system (B) a breathing mask (C) bronchodilatory treatment (D) aqueous solution (E) immunotherapy (F) radiation therapy (G) immune system (H) chemotherapy
Example Output: C

Example Input: Fact1: natural disasters can cause animals to leave an environment, Fact2: Mammals are a class of animal., Question: What may cause mammals to leave an enviroment? (A) contamination (B) adequate shelter (C) lack of predators (D) influenza (E) Pollution (F) deforestation (G) natural disasters (H) an abundance of food
Example Output:
G