In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Q: Sentence: Light retains its original color under water because frequency remains the same when light is refracted. Question: Light retains its original color under water because what remains the same when light is refracted?

A: frequency
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Q: Sentence: Reactive elements are able to combine more easily with other elements. Question: Reactive elements are able to combine more what with other elements?

A: easily
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Q: Sentence: The conclusion that two animal species evolved from a common ancestor in recent geological history is best supported by the observation that the species have similar bone structure. Question: Which of the following observations best supports the conclusion that two animal species evolved from a common ancestor in recent geological history?

A:
The species have similar bone structure.
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