Please choose the correct solution to the question: How do I remove hair from a vacuum cleaner's beater brush?

Solution1: Remove the beater brush from the vacuum cleaner. Carefully use a knife to cut the hair free from the beater brush.

Solution2: Remove the beater brush from the vacuum cleaner. Carefully use a lighter to burn the hair free from the beater brush.

Answer format: solution1/solution2
Answer: solution1