Respuesta :
Answer: Option (c) is the correct answer.
Explanation:
Polar bear has two layers of fur and a thick layer of fat called blubber. These layers help a polar bear to maintain warmth in his body.
These layers keep the temperature of polar bear about [tex]37 ^{o}C[/tex].
Therefore, we can conclude that out of the given options, thick fur is the trait which enables a polar bear to survive in an extremely cold climate.