Answer: The most likely reason why polar bears might not survive if the environment they live in continues to change is (D) they are adapted to the specific environment in which they live now.
Polar bears are adapted to the Arctic environment and are highly specialized for hunting and living in the extreme conditions of the region. They are vulnerable to changes in their environment, and if the Arctic continues to warm and the ice continues to melt, polar bears may not be able to adapt quickly enough to the new conditions, which could threaten their survival.
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