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 breathing mask is used for keeping harmful particles from entering the respiratory system, Fact2: Oxygen enters the respiratory system through the mouth and the nose., Question: Breathing masks are used to keep harmful particles from entering the mouth and the what? (A) body (B) eyes (C) air (D) skin (E) gullet (F) nose (G) ears (H) lungs

A: F
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Q: Fact1: a flashlight requires a source of electricity to produce light, Fact2: Flashlights can help children see better., Question: Children see better with a source of electricity to do what? (A) focusing a lens (B) staying warm (C) survival (D) reproduce (E) produce light (F) remove electricity (G) produce darkness (H) remove light

A: E
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Q: Fact1: Molecules of DNA are encoded with instructions that tell cells what to do., Fact2: Genes are parts of DNA molecules., Question: What tells a cell what to do? (A) breathe (B) alleles (C) Energy (D) voltage (E) fever (F) genes (G) nerves (H) state

A:
F
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