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Which detail from the second paragraph of “How to Become a Straight-A Student” best supports the key idea that working longer hours is inefficient?


Students spend hours in the library but accomplish little due to low-intensity focus.

Top students manage to work smarter by taking breaks and using efficient study methods.

The library is open 24 hours, allowing students to study as much as they want.

Working for long hours leads to frustration and underwhelming academic performance.

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Answered by GPT-5 mini AI
Students spend hours in the library but accomplish little due to low-intensity focus.

This detail directly shows that long hours don’t equal productivity — students work longer but get little done, supporting the idea that working longer is inefficient.