As a Consequence of the Reintroduction of the Gray Wolf

Multiple Choice

As a consequence of the reintroduction of the gray wolf into Yellowstone National Park and northern Idaho, the following other wild species have made a comeback:

A) Beavers
B) round squirrels, mice, and gophers
C) willow, aspen, and cottonwood trees
D) beavers, ground squirrels, mice, gophers, willow, aspen and cottonwood trees.
E) wolf reintroduction caused other species to decline, not reemerge or increase.