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: 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


[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


[Q]: Fact1: when metal conducts heat , that metal expands, Fact2: When the metal aluminum is mentioned, most people think of things like foil and soda cans., Question: What happens when soda cans conduct heat? (A) float (B) They expand (C) Evaporation (D) Energy. (E) energy (F) They inflate (G) heating liquids (H) strengthen
[A]:
B