Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to do the charleston [title] Take a rock step back with your left foot. [step] Touching the front of your foot to the floor, but not bringing your heel down. Don't fully shift your weight to this foot.

Ending1: [title] If this isn't comfortable, you could go to step 4, a trick that's easy to do. [title] Make a clenching motion in your fists. Ending2: [substeps] When doing the charleston, lean forward slightly and bend your knees a little. Keep your weight on the balls of your feet. Ending3: You don't want your toes to touch the ground. Take a deep breath and transfer that extra weight to the new position you picked up on stage. Ending4: [title] Bring both knees (one at a time) away from the center of your body. [step] You'll be standing upright during this step.

Answer format: ending1/ending2/ending3/ending4