Please choose the correct ending to complete the given sentence: Health: [header] How to prevent calluses on hands [title] Hydrate the affected area. [step] Make sure to moisturize your skin, focusing on the areas that most often get calluses like the hands and feet. Moisturize at least twice a day, perhaps once in the morning and once before bed.

Ending1: [substeps] Even if calluses don't form before bed, do not apply any oil or talc. Any product containing these products should be left on your hands after washing them. Ending2: Soak a washcloth in lukewarm water and dab it over the areas where calluses develop. Then, wash the washcloth and moisturize again. Ending3: The lotion will soften existing calluses and help to prevent more cracking. [substeps] Try a powerful lotion like gold bond with shea butter. Ending4: [title] Get at least 5-7 hours of light exercise every day. [step] Regular exercise will definitely help to repair calluses.

Answer format: ending1/ending2/ending3/ending4