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: All chemical reactions require activation energy to get started., Fact2: Chemical changes are a result of chemical reactions., Question: What is required before a chemical change? (A) kinetic energy (B) energy usage (C) activation push (D) activation energy (E) activation switch (F) activation power (G) Burning fuel and air (H) Evaporation

A: D
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Q: Fact1: fog is formed by water vapor condensing in the air, Fact2: Water vapor rises into the atmosphere., Question: what does the atmosphere do before turning into fog (A) adapt (B) rest (C) Rise (D) fall (E) cooled (F) snow (G) swirl (H) Lift

A: C
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Q: Fact1: Flagella help prokaryotes move., Fact2: Bacteria are prokaryote cells., Question: Bacteria gets help moving from what?  (A) environment (B) lysosomes (C) food (D) cytoplasm (E) rhizome (F) light energy (G) flagella (H) the skin

A:
G
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