Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to play defense in table tennis [title] Push the ball back. [step] Return a ball to your opponent by placing a little backspin on the ball. To do a backhand push, stand close to the table and hold your forearm with the paddle parallel to the table.

Ending1: Use your hands to push back the heel bone of the other foot (the one holding the coach's foot), and bring the ball forward so it lands back in the table. Again, return to the table while keeping a straight back. Ending2: Place the paddle behind your back and in the center of your opponent's body. Keep your elbow at a 90 degree angle behind you, perpendicular to the table. Ending3: Keep the other arm pointed towards the ball so you stay balanced. Use a short stroke to hit the ball on back bottom part of the paddle. Ending4: Hold for a moment and then quickly return one paddle to your opponent by moving the racquet up toward you. [substeps] The only downside to this variation is the other player might retaliate by catching and backflipping the ball over his or her shoulder.

Answer format: ending1/ending2/ending3/ending4