Choices: i. Helps blend in; ii. nutrients; iii. Helps them run fast; iv. Protect from heat; v. Protect from cold; vi. heat energy; vii. adding heat; viii. hard outer covering;

You are presented with the quiz "What does thick fur help a bear with?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "thick fur can be used for keeping warm" and "with a thick fur coat and 4 inches of fat a bear stays warm". So, what's the best answer to the question?
Answer:
v.