Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to reduce ferret odor [title] Bathe your ferret once a month at most. [step] Fill the bottom of your tub up enough to cover your ferret's body while leaving its head above the water. The temperature should be just slightly warmer than lukewarm.

Ending1: Add soap in circular motions to help reduce odor. When you scrub off a ferret's gills, you should also wash their face and abdomen, as well as their anus and bladder. Ending2: [title] Use a diaper every hour to keep your ferret out of the water. [step] Every day, you should take a diaper to the store and change it daily. Ending3: [substeps] The water must be very warm, not chilled. Ferrets are perfectly happy to bathe themselves. Ending4: Scrub your ferret with a ferret-safe shampoo purchased from your local pet store or vet. [substeps] Never use a human shampoo or conditioner on your ferret, as these can be toxic to them.

Answer format: ending1/ending2/ending3/ending4