SAT Reading and Writing · Rhetorical Synthesis Practice Question

While researching a topic, a student has taken the following notes: <ul> <li>The Antarctic ozone hole was first reported in 1985.</li> <li>It was caused by chlorofluorocarbons (CFCs) used in refrigerants.</li> <li>The 1987 Montreal Protocol banned CFCs internationally.</li> <li>Ozone layer recovery is slow but underway.</li> <li>Full recovery is projected around 2070.</li> </ul> The student wants to emphasize that the ozone problem remains in progress despite international action. Which choice most effectively uses relevant information from the notes to accomplish this goal?

Which choice most effectively makes the student's point?

A
$CFCs caused the ozone hole.$
B
$Although the 1987 Montreal Protocol banned CFCs, full ozone-layer recovery is projected only around 2070.$
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C
$The Montreal Protocol was signed in 1987.$
D
$The Antarctic ozone hole was first reported in 1985.$

Explanation

The goal is ongoing problem despite action. Choice B juxtaposes the ban with the long recovery timeline. The others address one element.

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