Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to swim backstroke perfectly [title] Keep your body flat like a plank. [step] When you're doing the backstroke, you want your body to lay as flat on the surface of the water as possible. The smaller your profile in the water, the less resistance you'll feel as you swim and the easier it will be to go fast.

Ending1: [title] Position your body as you begin the backstroke. [step] First, do your standard front stroke, followed by a mid stroke, followed by a ste stroke (which is a fairly accurate stroke). Ending2: [substeps] Most people have a hard time getting their hips to float on the surface of the water, so they sink down a little below the surface. This is ok but try to keep your hips as close to the surface as possible. Ending3: [substeps] When your body is submerged, keep your feet about shoulder width apart. If you swim along a rigid surface, you'll be able to change direction when you rotate your toes. Ending4: Balance your weight on the balls of your feet and keep your shoulders down and in profile. [title] Pass your arms and legs out to your sides.

Answer format: ending1/ending2/ending3/ending4