Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to find new uses for old tennis balls [title] Inspect the old tennis balls. [step] If they're dirty, give them a quick wash. A simple soap and water solution rubbed over the dirty parts will probably suffice, or tennis balls can be placed in the washing machine inside a.

Ending1: One perk of tennis balls are that they simply have a nice texture, so as long as they're fresh and haven't thrown away, they can be washed. [substeps] You may find this task easier if you happen to have clean tennis balls at home or at a thrift store. Ending2: [title] Purchase a bag of tennis balls from a sporting goods store. [step] You can find tennis balls on sale at sporting goods stores and garage sales. Ending3: [substeps] Run a paper towel over the balls before you toss them out, to remove and clean the grime. [title] Flush out all of the old tennis balls with a detergent. Ending4: If they're split, they may still have some uses, so don't throw them out just yet. [title] Put old tennis balls to good use around the house.

Answer format: ending1/ending2/ending3/ending4