Please choose the correct ending to complete the given sentence: Health: [header] How to do half wheel pose in yoga [title] Lie on your back with legs straight and arms at your sides. [step] Bend your legs at the knees and place your feet near your buttocks. Make sure your feet are parallel to your shoulders.

Ending1: Your hamstrings should be on each side of your feet. [substeps] Do 4 to 6 repetitions of this exercise per class. Ending2: Place your palms flat on the floor and support your body weight with your feet. [title] Lift your arms above your head in the 90 degree position with your palms facing each other and point your toes toward each other. Ending3: You can now take half wheel pose, which is the process of lying flat on your back with the soles of your feet flat on the floor. [substeps] Use caution when doing the half wheel pose if you're on your knees as this is a pose that you will not be doing on your back. Ending4: [title] Exhaling, slowly raise your hips from the floor such that the body makes a straight line from head to knees. [title] If this feels comfortable, then shift your weight on to one leg by shifting the weight on to one leg and straightening the other leg to align with your body.

Answer format: ending1/ending2/ending3/ending4