Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to deal with a barking dog [title] Get rid of stimuli. [step] Take a look at what makes your dog bark and find a way to remove that motivation. If your dog likes to bark at passing pets they see through the window, close your curtains or blinds.

Ending1: If your dog is due for a reward, your dog will associate the bark with the action instead of your pet. [substeps] You can try switching the lights on at night or rolling up the window when your dog barks. Ending2: If they bark at the doorbell, encourage individuals to call or text you and let you know they're at your home. [substeps] If there is a stimulus you can't get rid of completely, such as your dog barking at their reflection in the window or mirror, try to limit their access. Ending3: If your dog loves there-noise, vibrations from wind and other stimuli help block out the dog barking. Control any unwanted noises by taking a bubble bath or dog shampoo and making sounds. Ending4: If your dog doesn't like to bark, remove the dog from your home. [substeps] Whenever you have work to do, shut down all your lights, open your windows, and change your pets regularly.

Answer format: ending1/ending2/ending3/ending4