Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to improve your splits [title] Warm up. [step] Go for a short run, jog in place, or do fifty jumping-jacks. [title] Sit down on the floor.

Ending1: [step] Get one leg up straight and then do the other. You want your knee parallel to the floor. Ending2: [step] Position your wrists where they are in front of you at elbow height. Place a strong pillow under your elbows, or reach behind your back. Ending3: [step] Get into a pike, (both legs straight out in front of you ,) and flex your feet. Lean over and pick a comfortable spot to sit at. Ending4: [step] This will warm you up in one of two ways. First, stand, and put your knees on the floor.

Answer format: ending1/ending2/ending3/ending4