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: coal is used for generating heat by burning, Fact2: Coal and lignite are the lithified remains of plants., Question: What are the lithified remains of plants used for? (A) heat production (B) generating heat by burning (C) harvesting crops (D) damming rivers (E) food and shelter (F) heat is produced (G) A transportation fuel (H) planting seeds

A: B
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Q: Fact1: most canyons are formed by flowing rivers through erosion over long periods of time, Fact2: Canyon formed as a consequence of river erosion., Question: what does erosion form? (A) valleys (B) Sediment (C) mountains (D) canyons (E) soils (F) hills (G) soft soil (H) loose soil

A: D
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Q: Fact1: TRH stimulates the pituitary gland to produce thyroid-stimulating hormone, or TSH., Fact2: Thyroid hormones regulate the metabolic rate in the body., Question: What gland helps regulate the metabolic rate in the body? (A) dehydration (B) Veins and arteries. (C) Prostate glands (D) H2O glands (E) Pituitary gland (F) pancreas (G) sweating (H) Anal scent glands

A:
E
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