The polar bear is one of the largest carnivores. It hunts mainly seal on the Arctic ice. What could be a factor that adversely affects the polar bear’s success at hunting, and, in the long run, significantly affects the animal’s chance of survival?
A) Global warming melts sea ice, reducing the polar bear’s ability to get food.
B) The freezing over of water pockets, making it difficult for the seals to escape.
C) The absence of vegetation in the region during the winter, causing the bears to starve.
D) The rise in temperatures of the region, disturbing the thermoregulation process of the bear’s body.