medium · GMAT Verbal

Because engagement is a prerequisite for academic success, **banning smartphones may have the unintended consequence of lowering, rather than raising, student performance.** Which of the following best describes the roles played by the boldfaced portions?

1. The first is a position the author supports; the second is a consequence the author fears.
2. The first and second are both premises that support a third, unstated conclusion.
3. The first is evidence the author cites in favor of the ban; the second is an objection the author raises and then rejects.
4. The first is the main conclusion; the second is a premise.
5. The first is a description of a plan's goal; the second is the argument's main conclusion.

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