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: an aquatic animal requires great amounts of water to survive, Fact2: Beavers are primarily aquatic animals., Question: what requires great amounts of water to survive (A) sunlight (B) beavers (C) octopus (D) mussels (E) trout (F) carbon (G) oxygen (H) amphibians

A: B
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Q: Fact1: Biodiversity increases the productivity and stability of ecosystems., Fact2: An ecosystem includes the organisms and their habitat., Question: what does biodiversity increase the productivity and stability of? (A) density (B) the looseness of soil (C) water vapor (D) the environment (E) h2o (F) swamp vegetation (G) biological diversity (H) organisms and their habitat

A: H
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Q: Fact1: Thyroid hormones increase the rate of metabolism in cells throughout the body., Fact2: Thyroid hormones are made by the thyroid gland., Question: What gland makes a chemical in the body to increase the rate of metabolism? (A) sweating (B) Follicle (C) A drug. (D) heat (E) lmestone (F) endocrine gland (G) Pituitary gland (H) Thyroid

A:
H
****