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: Migrants typically travel long distances., Fact2: Migrant birds arrive., Question: What travels long distances? (A) humans (B) jets (C) rocks (D) birds (E) camels (F) cocoons (G) Light (H) eggs

A: D
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Q: Fact1: Wings are part of the exoskeleton and attached to the thorax., Fact2: Insects have exoskeletons., Question: What is attached to insects' thorax? (A) sugar (B) Energy. (C) antennae (D) Energy (E) wings (F) nothing (G) food (H) pancreas

A: E
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Q: Fact1: Gene flow occurs when individuals move into or out of a population., Fact2: Genetic diversity can be maintained in small populations by even a small amount of gene flow., Question: What can be maintained when individuals move into or out of a population? (A) loose soil (B) vegetation (C) reusing materials (D) important habitats (E) genetic diversity (F) resistance (G) hydration (H) swamp vegetation

A:
E
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