题目选项分析

Though subject to the same wild-animal control efforts that killed off almost all the wolves in North America over the past century, the amazing ability of the coyote to adapt to the presence of humans has enabled it to expand the range into Alaska and Central America.

Though subject to the same wild-animal control efforts that killed off almost all the wolves in North America over the past century, the coyote, because of its amazing ability to adapt to the presence of humans, has been able to expand its range into Alaska and Central America.