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: soil is formed by weathering, Fact2: Over time, the slow processes of weathering and erosion can turn large rocks into sand., Question: What is formed by erosion processing large rocks? (A) cracks (B) crust (C) Newton (D) roots (E) pan (F) soil (G) potash (H) biome
[A]: F


[Q]: Fact1: oil is formed by layers of sediment pushing down on decomposing algae, Fact2: When the algae dies it is decomposed by bacteria., Question: Oil is formed by layers of sediment pushing down on what? (A) bacteria (B) nutrients (C) amoebae (D) tunicates (E) oysters (F) coral reefs (G) mussels (H) Bodily water
[A]: A


[Q]: Fact1: a breathing mask is used for keeping harmful particles from entering the respiratory system, Fact2: Aerosols are tiny particles suspended in the air., Question: What can be used for keeping aerosols from entering the respiratory system? (A) goggles (B) hydration (C) sweating (D) hydrogen and oxygen (E) breathing masks (F) lab coats (G) layers of fat (H) gloves
[A]:
E