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: a light bulb is used for seeing in the dark, Fact2: Conventional light bulbs generate light by heating a filament., Question: What is helpful for seeing in the dark? (A) an electron microscope (B) an electron lens (C) microscope (D) closing the blinds (E) blackouts (F) closing your eyes (G) focusing a lens (H) heating a filament

Ex Output:
H

Ex Input:
Fact1: staying warm has a positive impact on an animal 's survival, Fact2: With a thick fur coat and 4 inches of fat a bear stays warm., Question: What has a positive impact on an animal's survival? (A) four limbs (B) sensory neurons (C) low water availability (D) fur and fat (E) loss of food (F) heat energy (G) hormones (H) destruction of habitat

Ex Output:
D

Ex Input:
Fact1: looking at bright objects has a negative impact on the eyes, Fact2: Outside, the sun is bright., Question: Looking the sun has a what impact on the eyes? (A) heat energy (B) sunlight (C) positive (D) Temperature (E) negative (F) confusing (G) neutral (H) dangerous

Ex Output:
E