Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to train your ferret to walk on a leash [title] Purchase a h-style harness. [step] Visit your local pet store and purchase a h-style harness for ferrets. Do not buy a collar or a figure-8 style harnesses.

Ending1: Your ferret could easily slip out of a collar, and the figure-8 harness is often too loose on one side and too tight on the other. [substeps] The harness should be made of nylon and have plastic buckles. Ending2: Both should be securely monitored for ferrets. H-style harnesses work on real dogs. Ending3: Make sure you have good grip and that the leash does not slip. [substeps] You can find a shop clerk's identification card at a pet store. Ending4: The cable harnesses will just increase your ferret's difficulty with walking and can cause injury if your ferret bites the harness. Instead, purchase a one-piece style harness that you can use for the duration of your ferret's walk.

Answer format: ending1/ending2/ending3/ending4