For the Gwich'in,the Most Important Result of Climate Change Has

For the Gwich'in,the most important result of climate change has been:

A) The increased presence of outside industries that have negative impacts on local culture.
B) The need to find more sophisticated ways of keeping warm as their area cools.
C) Increased contact with outsiders and increasing ability to sell furs and native crafts.
D) The decrease in size and health of the caribou herd on which they depend.
E) Increased ability to use snowmobiles to hunt caribou and fur bearing mammals.