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").

Input: Consider Input: Fact1: Veins generally carry deoxygenated blood., Fact2: Arteries and veins are blood vessels., Question: what generally carries deoxygenated blood? (A) blood vessels (B) animals (C) layers of fat (D) mammals (E) critical organs (F) an organism's body (G) elephants (H) athletes

Output: A


Input: Consider Input: Fact1: a plant requires sunlight for photosynthesis, Fact2: Photosynthesis is the process of making food., Question: What do plants require to make food? (A) nutrients (B) sunlight (C) photons (D) Energy. (E) Light (F) Proteins (G) power (H) heat energy

Output: B


Input: Consider Input: Fact1: the moon revolving around the Earth causes the phases of the moon, Fact2: Phases of the Moon are caused by a shadow from the Earth., Question: What does the light on the moon come from? (A) The Earth (B) a prism (C) The sun. (D) A shadow (E) heat (F) heat energy (G) Solar energy (H) The moon


Output: C