Please choose the correct solution to the question: How do you prevent your teeth from getting stained?

Solution1: Rinse your mouth with water within half an hour of eating or drinking these stain-causing foods and drinks, giving them less time to do their damage. Brushing your teeth: Brushing your teeth soon after eating is the best way to prevent discoloration from foods and drinks.

Solution2: Rinse your mouth with water within half an hour of eating or drinking these stain-causing foods and drinks, giving them less time to do their damage. Brushing your teeth: Brushing your teeth long after eating is the best way to prevent discoloration from foods and drinks.

Answer format: solution1/solution2
Answer: solution1