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: seeing requires light, Fact2: Sight is the mere ability to see, and the eye's responses to light shining into it., Question: What do eyes require? (A) a form of oxygen (B) Light shining into it (C) Exposure to oxygen and water (D) A dark environment (E) Contact lenses (F) melanin amount (G) tissue made of chondrocytes (H) Glasses

Ex Output:
B

Ex Input:
Fact1: Most salamanders use their sense of smell to find a mate., Fact2: Like frogs, salamanders are amphibians., Question: What uses its sense of smell to find a mate? (A) the Sun (B) peachleaf willow (C) rocks (D) fur seals (E) warm-blooded (F) trees (G) passenger pigeons (H) some amphibians

Ex Output:
H

Ex Input:
Fact1: preventing the transfer of heat from an organims 's body causes that organism to keep warm, Fact2: An adult human is a diploid organism., Question: How does a human keep warm? (A) Something with a head, thorax, and abdomen (B) drinking plenty of water (C) increases the transfer of heat (D) transfers heat to someone (E) heat is produced (F) hard outer covering (G) prevents the transfer of heat (H) they body they live in

Ex Output:
G