Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to make glow in the dark stepping stones [title] Clean the stones. [step] If you are applying paint, you need a clean surface to start with. Dust and dirt under the paint will cause problems with adhesion and you will end up with flaky paint.

Ending1: Once you have cleaned your stones, rinse them under water for up to one minute, and then dry them with a clean rag or coffee filter. [title] Check your stone's hardness before placing it under the soap. Ending2: Wipe these clean off with cloth or paper towels. [substeps] To make glow in the dark walking stones won't even enter the light, you'll need to clean them a lot. Ending3: Fill a syringe with a durable, water-based cleaner. Squirt lemon juice between the stones. Ending4: Wipe each stone down with soap and water. Then, wipe each stone down with a rag dipped either in water, acetone, or isopropyl alcohol.

Answer format: ending1/ending2/ending3/ending4