Nhận biết (M1)

Text 1

Proponents of “rewilding” argue that reintroducing large predators such as wolves restores balance to ecosystems. When wolves returned to Yellowstone National Park, they reduced overgrazing by elk, allowing streamside vegetation—and the many species that depend on it—to recover.

Text 2

Ecologist Arian Wallach cautions that the Yellowstone narrative has been oversimplified. Vegetation recovery, she notes, coincided with shifts in climate and other factors, and studies that attempt to isolate the wolves' specific effect have produced decidedly mixed results. Crediting the entire transformation to a single predator, she argues, overstates what one species can achieve.

Based on the texts, how would Wallach (Text 2) most likely characterize the account of Yellowstone presented in Text 1?

• A.

  As accurate but incomplete in its description of elk grazing behavior.

• B.

  As assigning predators more credit than the available evidence clearly warrants.

• C.

  As correctly identifying climate change as the primary driver of recovery.

• D.

  As underestimating the speed with which streamside vegetation recovered.