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").

Ex 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

Ex Output:
C


Ex Input:
Fact1: Mollusks live in most terrestrial, freshwater, and marine habitats., Fact2: Though most trout are freshwater fish, some live in marine waters., Question: What do some mollusks live near? (A) gills (B) rivers (C) desert (D) roads (E) fungi (F) trout (G) clouds (H) water

Ex Output:
F


Ex Input:
Fact1: Many consumers feed at more than one trophic level., Fact2: Nutrient levels are referred to as trophic status., Question: Many consumers feed at more than one what? (A) farm to table empire (B) cattle ranch (C) Decibels (D) space station (E) kinetic energy (F) nutrient level (G) an organism's body (H) Veins and arteries.

Ex Output:

F