Context: Read the passage about winter coats.
People put on winter coats when it's cold outside, and some animals have winter coats, too! They grow extra-thick coats of fur to keep warm in winter. The thick fur traps their body heat and keeps it close to their skin. Many wild animals grow winter coats. But so do some cats and dogs.
Some animals, like arctic foxes, also change coat colors in winter. They shed their brown fur and grow thick white coats. Their white coats help them hide from other animals in the snow.
How does thick fur help animals in wintertime?
A. It keeps them warm by trapping their body heat.
B. It makes them look older.
From the given choices, choose the correct answer and respond with the letter of that choice.
Answer: A