Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to inflate a basketball [title] Get an air pump. [step] Purchase a decent air pump for balls if you have not done so already. Pumps aren't too expensive and are easy to find.

Ending1: Tennis balls are a great alternative because they're light, sturdy and easy to transport. Try not to get them hot! Choose one with the correct fit : [substeps] Air pumps are recommended because sports ball stores carry them. Ending2: You can even use a bike pump with the proper needle. [substeps] You'll need to purchase a ball needle if your pump doesn't already have one. Ending3: Ensure you have enough room in your box to fit balls. [title] Spray air or draw oils in a bucket. Ending4: Any size will do, and they come in many different forms: balloon-shaped or with holes in the bottom. ( adding size in between each hole makes the ball push out.

Answer format: ending1/ending2/ending3/ending4