Answer:
The correct answer is option c. "Caribou have a thicker coat of fur and wider hooves".
Step-by-step explanation:
Caribou is a large mammal that have adapted to live in extreme cold conditions during winter in the tundra. Two characteristics that different caribou to other herbivores of warmer climates is that caribou have a thicker coat of fur and wider hooves. The thick coat enables caribou to survive the cold conditions and enter to frigid rivers while migrating, while the wide hooves help them to move through snow.