Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to remove stickers from glossy paperback book covers [title] Dip a cotton ball in a bottle of 91% rubbing alcohol. [step] Make sure it is completely wet around all the sides of the sticker alone. Be careful that it isn't the 70% rubbing alcohol variety, as those can be less potent and therefore won't remove as easily.

Ending1: Leave the alcohol on the sticker for at least 30 minutes, until it stops dripping with the rubbing alcohol and the cover is clean. [title] Use a q-tip dipped in your rubbing alcohol to pick off any stickers you find stuck with sticker. Ending2: [title] Rub the wet end of the cotton ball on the edge of one of the sides of the sticker. [step] Rub the sticker until it begins to discolor. Ending3: [title] Use the damp cotton ball to thoroughly wet the sticker. [step] Be thorough when cleaning with the cotton ball, because the alcohol can dry out your book cover and warp the design. Ending4: [substeps] If you don't have cotton balls, buy them at local supermarkets. You will only need to rub them over several sections, and make sure they aren't soaking wet or dripping with the alcohol.

Answer format: ending1/ending2/ending3/ending4