18. "In British Columbia, where, since 1990, thirteen rainforest valleys have been clear-cut, 142 species of salmon have already become extinct, and the habitats of grizzly bears, wolves and many other creatures are threatened." From the quote above we know that wolves are also habitants of British Columbia, and grizzly bears are one of the _____ species there: (A) extinct; (B) endangered; (C) endeared; (D) threatening.