Please choose the correct ending to complete the given sentence: Health: [header] How to use apple cider vinegar for athlete's foot [title] Buy cloudy , 5% vinegar. [step] The cloudy, brown film you see in some bottles of apple cider vinegar is called " the mother ", and it's a good thing. It means the vinegar is of high quality, and contains extra healing nutrients that will make it even more effective.

Ending1: Plus, it's cheap! [title] Opt for white vinegar. [step] White vinegar has a mild smell when wet, but not so much as when you're drinking it. Ending2: [substeps] The " mother " is represented by a " 8 " symbol followed by the directions for the expiration date. If you drink your apple cider vinegar at parties, follow the instructions provided in the bottle by the store. Ending3: [substeps] However, it's likely you will develop foot problems without the mother fully in the bottle. Try to avoid putting the mother directly into the apple cider vinegar, or you risk infection. Ending4: [title] Pour 2 to 4 cups of apple cider vinegar into a large bowl. [step] You will want enough so that you can stick both your feet in.

Answer format: ending1/ending2/ending3/ending4