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").

Q: Fact1: lakes are formed by precipitation and runoff, Fact2: Runoff from precipitation is a natural part of the water cycle., Question: What are some of the steps that forms a lake? (A) decomposition and respiration (B) storing water (C) photosynthesis and solar energy (D) near the shoreline (E) precipitation and run-off (F) perspiration and excretion (G) The area was once underwater (H) At the peak of a mountain

A: E
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Q: 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

A: B
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Q: Fact1: Many nucleotides bind together to form a chain called a polynucleotide., Fact2: DNA strands are long polynucleotide chains., Question: What is a DNA strand? (A) more abundant (B) Plant reproduction (C) keeping the dog warm (D) flow of electrons (E) Something to move (F) fertile (G) Polynucleotide (H) negative

A:
G
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