Please choose the correct solution to the question: How to test if a toilet is running.

Solution1: Drop some food scraps into the tank. Wait a few minutes. If you see the food scraps flowing into the bowl, take a trip to your local hardware store to pick up a new flapper.

Solution2: Drop some food coloring into the tank. Wait a few minutes. If you see the food coloring bleeding into the bowl, take a trip to your local hardware store to pick up a new flapper.

Answer format: solution1/solution2
Answer: solution2