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: microorganisms can cause infections, Fact2: Bacteria are microorganisms that exist everywhere., Question: What can cause infection? (A) bacteria (B) seeds (C) influenza (D) disease (E) horses (F) viruses (G) chickenpox (H) bladders
[A]: A


[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


[Q]: Fact1: Sex hormones are chemical messengers that control sexual development and reproduction., Fact2: Androgens are male sex hormones., Question: androgens and what kind of messengers? (A) animals (B) interact (C) organ (D) humans (E) chemical (F) PDAs (G) allow growth (H) kinetic
[A]:
E