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: a plants require water for survival, Fact2: Water contains hydrogen and oxygen., Question: What do plants require for their survival? (A) Light (B) Proteins (C) Energy. (D) salinity (E) hydrogen (F) nutrients (G) sunlight (H) food

A: E
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Q: Fact1: Food consists of organic molecules that store energy in their chemical bonds., Fact2: If an molecule contains carbon, it is called organic., Question: What does food consist of? (A) mostly carbon (B) solid, liquid, gas (C) mostly arsenic (D) mostly hydrogen (E) Energy. (F) mostly nitrogen (G) glucose (H) Most plants

A: A
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Q: Fact1: the number of rings in a tree trunk can be used to estimate the age of the tree, Fact2: Tree-ring dating the 1700 Cascadia earthquake., Question: Estimating the age of trees can be used for what (A) genetic diversity (B) they body they live in (C) earthquake history (D) food and shelter (E) gardening (F) important habitats (G) bird watching (H) recreation

A:
C
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