Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to perform a flying side kick [title] Keep your guard up. [step] In order to execute a flying sidekick, you need to learn to protect yourself from your opponent's attacks while you wait for an opportunity to use it. [substeps] Raise both fists to just below eye level to place them in position to both block strikes as well as to execute offensive movements.

Ending1: The positioning of your fists to ensure stability and balance is key to accuracy. Being vigilant prevents you from back-hitting and puts you in a vulnerable position for a back-kick. Ending2: Ask a family member to restrain you as you wait for an opportunity to use their guard. Stand back and release your guard as you rapidly launch your kicking arm overhead. Ending3: [title] Position yourself between your opponent and the basket. [step] To execute a flying sidekick, stand in the middle of the basket that you are treating as your opponent's basket. Ending4: Keep your rear elbow tight to the body without touching it. It will protect your solar plexus and ribs.

Answer format: ending1/ending2/ending3/ending4