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: Chromosomes are coiled structures made of DNA and proteins., Fact2: DNA is deoxyribonucleic acid., Question: chromosomes are coiled structures made of proteins and what? (A) solid, liquid, gas (B) density (C) Something that causes allergies (D) deoxyribonucleic acid (E) It helps them survive (F) inheritance (G) blood cells (H) allow growth
[A]: D

[Q]: Fact1: matter vibrating can cause sound, Fact2: All matter emits vibrations., Question: What kind of matter can produce sound? (A) sensory neurons (B) all matter (C) an object (D) only liquids (E) mechanical (F) only plasma (G) only solids (H) waves
[A]: B

[Q]: Fact1: microscope is used to see small things by biologists by making them appear bigger, Fact2: Mites are almost microscopic and best seen with a hand lens or magnifying glass., Question: What or or magnifying glasses are used to see small things to make them appear bigger? (A) mirrors (B) satellites (C) hand lenses (D) electricity (E) an image (F) sea urchins (G) barrel-shaped (H) squids
[A]:
C