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: a scale is used for measuring weight, Fact2: All weight is in pounds., Question: what is a scale used for measuring? (A) waves (B) hardness (C) SI units (D) measures (E) intensity (F) fat (G) strength (H) pounds
[A]: H

[Q]: Fact1: Animals can communicate with sounds, chemicals, or visual cues., Fact2: Unlike animal communication, properly human communication is abstract and linguistic in nature., Question: Which of the following do humans not use to communicate? (A) chemicals. (B) limb amputation (C) emissions (D) sweating (E) smoking pipes (F) dry conditions (G) visible energy (H) heat or cold
[A]: A

[Q]: Fact1: Plants exhibit phototropism, or growing toward a light source., Fact2: Stems are positively phototropic., Question: what do stems grow towards? (A) roots (B) flowers (C) water (D) light (E) seeds (F) dark (G) the sun (H) Trees
[A]:
D