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").

[EX Q]: Fact1: Viruses cause many human diseases., Fact2: Examples include influenza, rabies, HIV, and Herpes viruses., Question: What causes human disease? (A) HPV (B) UV (C) minerals (D) Tamiflu (E) mold (F) HIV (G) human growth (H) CFCs
[EX A]: F

[EX Q]: Fact1: a rainbow is formed by refraction of light by separating light into all different colors, Fact2: Introduction A rainbow is often given as an everyday example of a spectrum., Question: A spectrum is formed by refraction of light by separating light into all different what? (A) categories (B) dyes (C) photons (D) pigments (E) light (F) colors (G) Energy. (H) energy
[EX A]: F

[EX Q]: Fact1: a greenhouse is used to protect plants by keeping them warm, Fact2: Hobby greenhouses used to be small glass houses or fiberglass buildings., Question: Glass or fiberglass buildings are used to protect plants by keeping them what? (A) mild (B) heat (C) hibernating (D) cooled (E) warm (F) warmth (G) cold (H) frozen
[EX A]:
E