Please choose the correct ending to complete the given sentence: Health: [header] How to prevent guinea worm disease (dracunculiasis ) [title] Drink bottled water, if possible. [step] If bottled water is available in your area, drink it if at all possible. Bottled water should generally be safe from guinea worm infections, so stock up on bottled water in the store if it's within your budget.

Ending1: This can greatly reduce your risk of contracting guinea worm. [substeps] If you're traveling to an area where guinea worm is present, bring bottled water in your checked bag. Ending2: [title] Check with your local pet store for the frequency and type of pesticides routinely used in an area affected by guinea worm disease. [step] Many pet stores will list pesticides and chemicals in the state when diagnosing guinea worm disease, as well as this information. Ending3: Distilled water is the best way to make sure your water is free of germs. [title] Keep a water dish on your front porch. Ending4: [substeps] You can also purchase bottled water at most drug stores. [title] Encourage your children to supervise guinea worm treatment.

Answer format: ending1/ending2/ending3/ending4