Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to stretch the groin area [title] Do leg circles. [step] Stand up straight, plant one of your leg firmly on the ground, and lift the other leg up slightly off the ground. Circle the lifted leg out from the planted leg, beginning with small circles and increasing their size as the muscles get warmed up.

Ending1: [substeps] Start with smaller circles and increase the size of your circles until you have more circles to work with. After you've completed a 6-9 minute series of 10 circles, a sign should appear on your thigh indicating your stretching is complete. Ending2: Continue doing these small circles until you feel a full stretch in the groin area. [title] Try a " down-low " stretch. Ending3: [substeps] Every muscle group should be stretched slightly. Hold the pose for five or ten seconds, then release. Ending4: [substeps] Switch sides and do the same stretch on the other leg. Do about 20 slow circles on each leg.

Answer format: ending1/ending2/ending3/ending4