Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to raise your leg up to your head [title] Stretch your hips. [step] The hips are ball and socket joints that help your legs move. Focusing on hip stretching can give you better range of motion in your legs.

Ending1: You can stretch your hips gently by just having them touch. Using your front leg as a guide, squeeze your hamstrings and roll your hips slowly away from the leg you need to stretch. Ending2: There are a number of hip stretches, including the hip flexor stretch, the hip rotator stretch, the floor hip stretch and the hip abductor stretch. To do the hip flexor stretch : [substeps] Kneel on your right knee and put your opposite foot on the floor. Ending3: Stretching gets all of the aerobic exercise going in a short length of time for you, even if your routine takes a bit of time. [substeps] As a rule of thumb, you should try to incorporate low to medium strength stretches into your dance routine, if necessary. Ending4: Avoid stretching too quickly and potentially damage your hip muscles by stretching with your legs straight out front. Use the bridge of your foot to gently roll your left ankle forward, so it's behind your front knee.

Answer format: ending1/ending2/ending3/ending4