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Craft and StructureMediumStructure: question, two explanations, undecided

Craft and Structure practice question

Why do we get a 'second wind' during hard exercise? One idea is that the body switches from a quick, short-lived fuel to a slower, steadier one. Another is that the brain simply revises its sense of how much effort remains. The studies done so far cannot separate the two, and the answer may involve both.

Which choice best describes the overall structure of the text?

  1. A. A question is posed, two explanations are offered, and the text notes that the evidence does not yet decide between them.Correct
  2. B. A claim is made and then proved by an experiment.
  3. C. A process is described in the order in which it occurs.
  4. D. A common misconception is stated and corrected.

Answer: A. A question is posed, two explanations are offered, and the text notes that the evidence does not yet decide between them.

Question, explanation one, explanation two, then 'cannot separate the two'.

Why the other answers are wrong

B. A claim is made and then proved by an experiment.
Nothing is proved; the text says the studies can't decide.
C. A process is described in the order in which it occurs.
The text weighs ideas rather than narrating steps.
D. A common misconception is stated and corrected.
No misconception is identified.

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