Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to do hindu pushups [title] Stretch before doing the hindu push-up. [step] To prevent injury, you should stretch before doing this exercise. Stretching will loosen your muscles and enable you to do this exercise more fluidly.

Ending1: [substeps] Start stretching by standing up, with your feet spread shoulder length apart. Then, bend to touch your toes on each foot, and hold for 10 seconds. Ending2: You will need to do a short body stretch before you begin this exercise. [substeps] Take a few moments to lay on your back on the floor or a mat. Ending3: To do this exercise : [substeps] Lie on the floor on a yoga mat, legs straight and feet pointed down. Extend one leg straight out in front of you and lift it, while holding onto your ankle with your other hand. Ending4: [substeps] Take a moment to loosen up your muscles before stretching. You may ask a friend to do it with you.

Answer format: ending1/ending2/ending3/ending4