Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to walk two dogs on leashes [title] Use the proper kinds of leashes. [step] If you're going to walk two dogs, choose solid leashes with a set length, about 1.5 meters or more. Any style is appropriate, but thick braided nylon leashes tend to be the strongest and longest lasting.

Ending1: Pick one appropriate to your dog's size and energy level. [substeps] Variable-length button-activated leashes tend to get tangled a lot more easily and encourage the dogs to pull at the leash. Ending2: [substeps] Anchor your foot at least ½ in (1.27 cm) above the ground. Never lead your dog around unless you have to back off the ground a bit in order to allow your dog to bend back down and put its nose to your hip. Ending3: If you're going to walk both dogs, cross the right end of the leash over the new loop, then bend it to the left, under the ankle, and then back back up. [substeps] You can also cross one other length over the leash as appropriate. Ending4: [substeps] For long walks, consider choosing nylon with something that looks like foam. Either decide on a vertical leash or cable leash.

Answer format: ending1/ending2/ending3/ending4